According to Baidu Education's inquiry, 1234567890 is not a traditional Chinese character, but a capital number, which is used for more formal amount counting. In our daily life, we often need to use these capital figures when it comes to the amount record. Because of the complex glyph, it is often mistaken for traditional Chinese characters.
Traditional Chinese characters, a font form of Chinese characters, are called "traditional Chinese characters" in Europe and America. Generally speaking, it refers to the Chinese characters replaced by simplified characters in the Chinese character simplification movement, and sometimes it refers to the whole Chinese character regular script and official script writing system before the Chinese character simplification movement.