10911090920 has 32 divisors (see below), whose sum is σ = 25013166120. Its totient is φ = 4282087680.

The previous prime is 10911090907. The next prime is 10911090989. The reversal of 10911090920 is 2909011901.

It can be written as a sum of positive squares in 4 ways, for example, as 9706584484 + 1204506436 = 98522^2 + 34706^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2571251 + ... + 2575490.

Almost surely, 2^10911090920 is an apocalyptic number.

10911090920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10911090920 is an abundant number, since it is smaller than the sum of its proper divisors (14102075200).

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

10911090920 is a wasteful number, since it uses less digits than its factorization.

10911090920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146805 (or 5146801 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 32.

The spelling of 10911090920 in words is "ten billion, nine hundred eleven million, ninety thousand, nine hundred twenty".