F 13#11, 4th inversion (G in the bass)
Also written as F13#11/G.
Notes, from the bass up
G (bass)BDFACEb
The same notes as F 13#11 (G, B, D, F, A, C and Eb), rearranged so G is the lowest note. Use it to move between chords with smaller jumps across the keyboard.