MATHEMATICAL BOLD DIGIT ONE U+1D7CF

𝟏
BlockMathematical Alphanumeric Symbols
CategoryDecimal Number
DecompositionDIGIT ONE (U+0031)
UTF-80xF0 0x9D 0x9F 0x8F
UTF-160xFF 0xFE 0x35 0xD8 0xCF 0xDF
UTF-320xFF 0xFE 0x0 0x0 0xCF 0xD7 0x1 0x0
HTML𝟏
Pythonu"\U0001D7CF"