Code point
U+3280
Glyph appearance depends on your fonts.
U+3280
No<circle> 4E00U+3280 CIRCLED IDEOGRAPH ONE is a Unicode 16.0.0 character in the Other Number category. It belongs to the Enclosed CJK Letters and Months block.
Choose the representation you need, then copy its value.
U+3280
12928
㊀
㊀
E3 8A 80
3280
00003280
%E3%8A%80
\u3280
\u3280
\u3280
\3280