C Major 9#11, 2nd inversion (G in the bass)
Also written as Cmaj9#11/G.
Notes, from the bass up
G (bass)BDF#CE
The same notes as C Major 9#11 (G, B, D, F#, C and E), rearranged so G is the lowest note. Use it to move between chords with smaller jumps across the keyboard.