12110091920 has 20 divisors (see below), whose sum is σ = 28155963900. Its totient is φ = 4844036736.

The previous prime is 12110091913. The next prime is 12110091941. The reversal of 12110091920 is 2919001121.

It can be written as a sum of positive squares in 2 ways, for example, as 3725393296 + 8384698624 = 61036^2 + 91568^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 12110091920.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75687995 + ... + 75688154.

It is an arithmetic number, because the mean of its divisors is an integer number (1407798195).

Almost surely, 2^12110091920 is an apocalyptic number.

12110091920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110091920 is an abundant number, since it is smaller than the sum of its proper divisors (16045871980).

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

12110091920 is a wasteful number, since it uses less digits than its factorization.

12110091920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151376162 (or 151376156 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 12110091920 in words is "twelve billion, one hundred ten million, ninety-one thousand, nine hundred twenty".