1
U+0031 · DIGIT ONE
Digit One
| UTF-8 | 31 | 1 byte |
|---|---|---|
| UTF-16 | 0031 | 1 code unit |
| UTF-32 | 00000031 | 4 bytes |
| HTML decimal | 1 | |
| HTML hex | 1 | |
| CSS | \31 | in content: "…" |
| JavaScript | \u0031 | |
| JSON | \u0031 | |
| Python | \u0031 | |
| Python | \N{DIGIT ONE} | by name |
| Java / C# | \u0031 | |
| Rust / Swift / PHP | \u{31} | |
| Go | \u0031 | |
| Ruby | \u0031 | |
| Excel / Sheets | =UNICHAR(49) | |
| URL-encoded | %31 | percent-encoded UTF-8 |
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Looks similar
Characters that Unicode’s security data (UTS #39 confusables) lists as visually confusable with this one. Useful for spotting lookalike spoofing in URLs and usernames.
U+0049ILatin Capital Letter I
U+006ClLatin Small Letter L
U+007C|Vertical Line
U+0196ƖLatin Capital Letter Iota
U+01C0ǀLatin Letter Dental Click
U+0399ΙGreek Capital Letter Iota
U+0406ІCyrillic Capital Letter Byelorussian-Ukrainian I
U+04C0ӀCyrillic Letter Palochka
U+05C0׀Hebrew Punctuation Paseq
U+05D5וHebrew Letter Vav
U+05DFןHebrew Letter Final Nun
U+0627اArabic Letter Alef
U+0661١Arabic-Indic Digit One
U+06F1۱Extended Arabic-Indic Digit One
U+16C1ᛁRunic Letter Isaz Is Iss I
U+2110ℐScript Capital I
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Characters built on 1
U+00B9¹Superscript One
U+00BC¼Vulgar Fraction One Quarter
U+00BD½Vulgar Fraction One Half
U+2081₁Subscript One
U+2150⅐Vulgar Fraction One Seventh
U+2151⅑Vulgar Fraction One Ninth
U+2152⅒Vulgar Fraction One Tenth
U+2153⅓Vulgar Fraction One Third
U+2155⅕Vulgar Fraction One Fifth
U+2159⅙Vulgar Fraction One Sixth
U+215B⅛Vulgar Fraction One Eighth
U+215F⅟Fraction Numerator One
U+2460①Circled Digit One
U+2469⑩Circled Number Ten
U+246A⑪Circled Number Eleven
U+246B⑫Circled Number Twelve
U+246C⑬Circled Number Thirteen
U+246D⑭Circled Number Fourteen
U+246E⑮Circled Number Fifteen
U+246F⑯Circled Number Sixteen
U+2470⑰Circled Number Seventeen
U+2471⑱Circled Number Eighteen
U+2472⑲Circled Number Nineteen
U+2474⑴Parenthesized Digit One