Db 7b13, 1st inversion (E# in the bass)
Also written as Db7b13/E#.
Notes, from the bass up
E# (bass)G#BAC#
The same notes as Db 7b13 (E#, G#, B, A and C#), rearranged so E# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.