| Name | MATHEMATICAL BOLD DIGIT ONE |
| Unicode Version | 3.1 |
| Block（ブロック） | Mathematical Alphanumeric Symbols（数学用英数字記号） |
| Plane（面） | Supplementary Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | 𝟏 𝟏 |
| UTF-8 Encoding | 𝟏 f09d9f8f |
| UTF-16 Encoding | 𝟏 d835dfcf |
| UTF-32 Encoding | 𝟏 0001d7cf |