piano chord
C♯sus2
C♯1D♯2G♯5
The third replaced by the second. Nothing in it decides between major and minor.
Written the other way round it is D♭sus2 — the same twelve keys on a piano, a different piece of notation.
What is true of it
C♯sus2 is C♯, D♯ and G♯ — 1, 2 and 5 counted from C♯.
These are also the notes of G♯sus4/C♯ and A♭sus4/C♯. Which name is right depends on what is underneath and what came before — the notes alone do not decide.