B 13#11, 6th inversion (G# in the bass)
Also written as B13#11/G#.
Notes, from the bass up
G# (bass)BD#F#AC#E#
The same notes as B 13#11 (G#, B, D#, F#, A, C# and E#), rearranged so G# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.