C Major 9#11, 4th inversion (D in the bass)
Also written as Cmaj9#11/D.
Notes, from the bass up
D (bass)F#CEGB
The same notes as C Major 9#11 (D, F#, C, E, G and B), rearranged so D is the lowest note. Use it to move between chords with smaller jumps across the keyboard.