Db Major 9#11, 4th inversion (D# in the bass)
Also written as Dbmaj9#11/D#.
Notes, from the bass up
D# (bass)GC#E#G#B#
The same notes as Db Major 9#11 (D#, G, C#, E#, G# and B#), rearranged so D# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.