| Name | MATHEMATICAL DOUBLE-STRUCK SMALL J |
| 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 | 𝕛 𝕛 |
| UTF-8 Encoding | 𝕛 f09d959b |
| UTF-16 Encoding | 𝕛 d835dd5b |
| UTF-32 Encoding | 𝕛 0001d55b |