11021951904 has 192 divisors, whose sum is σ = 31679859456. Its totient is φ = 3341205504.

The previous prime is 11021951881. The next prime is 11021951933. The reversal of 11021951904 is 40915912011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10083582 + ... + 10084674.

It is an arithmetic number, because the mean of its divisors is an integer number (164999268).

Almost surely, 2^11021951904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11021951904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15839929728).

11021951904 is an abundant number, since it is smaller than the sum of its proper divisors (20657907552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021951904 is a wasteful number, since it uses less digits than its factorization.

11021951904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327 (or 1319 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 33.

The spelling of 11021951904 in words is "eleven billion, twenty-one million, nine hundred fifty-one thousand, nine hundred four".