Ab Major 9#11, 5th inversion (D in the bass)
Also written as Abmaj9#11/D.
Notes, from the bass up
D (bass)G#B#D#GA#
The same notes as Ab Major 9#11 (D, G#, B#, D#, G and A#), rearranged so D is the lowest note. Use it to move between chords with smaller jumps across the keyboard.