[NTG-context] A question about a symbol in an text

Hello everyone! I have this one: \starttext Das Coverbild Untitled U+00023 9 ist eine Grafik aus der Serie Plastic Bodies der_des audiovisuellem Künstlerin bertkovski. \stoptext The problem is, that i wanted to use the symbol #. But when i wrote it in the text as i need it, after compiling, i got a message, that i am not allowed (You cant’t use macro paramenter character #‘ in horinzontal mode) to use it as i wanted. Can sombebody help me please? As you can see above, i tried to use the unicode. But there is something wrong. Uschi