Code point
U+1D7E3
Glyph appearance depends on your fonts.
U+1D7E3
Nd<font> 0031U+1D7E3 MATHEMATICAL SANS-SERIF DIGIT ONE is a Unicode 16.0.0 character in the Decimal Digit Number category. It belongs to the Mathematical Alphanumeric Symbols block.
Choose the representation you need, then copy its value.
U+1D7E3
120803
𝟣
𝟣
F0 9D 9F A3
D835 DFE3
0001D7E3
%F0%9D%9F%A3
\U0001D7E3
\u{1D7E3}
\uD835\uDFE3
\1D7E3