Bb 13#11, 1st inversion (D in the bass)
Also written as Bb13#11/D.
Notes, from the bass up
D (bass)E#G#B#EGA#
The same notes as Bb 13#11 (D, E#, G#, B#, E, G and A#), rearranged so D is the lowest note. Use it to move between chords with smaller jumps across the keyboard.