F 13#11, 5th inversion (B in the bass)
Also written as F13#11/B.
Notes, from the bass up
B (bass)DFACEbG
The same notes as F 13#11 (B, D, F, A, C, Eb and G), rearranged so B is the lowest note. Use it to move between chords with smaller jumps across the keyboard.