Correct

You will meet this constantly in published Japanese — newspapers, books, signs, and dates.

More common than 部 (Part), less common than 性 (Gender).

A dart sits exactly in the bullseye.

In words

当てあて object;aim;end;hopes;expectationsN1

当たるあたる to be hit,to be successful,to be equivalent toN3

当てるあてる to hit,to apply a patchN3

当 is rank 48 of 2,608 in published Japanese.