| Name | DOUBLE CIRCLED DIGIT ONE |
| Unicode Version | 3.2 |
| Block（ブロック） | Enclosed Alphanumerics（囲み英数字） |
| Plane（面） | Basic Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | ⓵ ⓵ |
| UTF-8 Encoding | ⓵ e293b5 |
| UTF-16 Encoding | ⓵ 24f5 |
| UTF-32 Encoding | ⓵ 000024f5 |