Bb Major 9#11, 1st inversion (D in the bass)
Also written as Bbmaj9#11/D.
Notes, from the bass up
D (bass)E#AB#EA#
The same notes as Bb Major 9#11 (D, E#, A, B#, E and A#), rearranged so D is the lowest note. Use it to move between chords with smaller jumps across the keyboard.