11009090920 has 64 divisors (see below), whose sum is σ = 24938020800. Its totient is φ = 4373952000.

The previous prime is 11009090909. The next prime is 11009090929. The reversal of 11009090920 is 2909090011.

It is not an unprimeable number, because it can be changed into a prime (11009090929) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4205452 + ... + 4208068.

It is an arithmetic number, because the mean of its divisors is an integer number (389656575).

Almost surely, 2^11009090920 is an apocalyptic number.

11009090920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11009090920 is an abundant number, since it is smaller than the sum of its proper divisors (13928929880).

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

11009090920 is a wasteful number, since it uses less digits than its factorization.

11009090920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298 (or 3294 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 31.

The spelling of 11009090920 in words is "eleven billion, nine million, ninety thousand, nine hundred twenty".