12113500881 has 16 divisors (see below), whose sum is σ = 16548698880. Its totient is φ = 7877066880.

The previous prime is 12113500877. The next prime is 12113500933. The reversal of 12113500881 is 18800531121.

It is not a de Polignac number, because 12113500881 - 2² = 12113500877 is a prime.

It is a super-2 number, since 2×12113500881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12113500801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955935 + ... + 968523.

It is an arithmetic number, because the mean of its divisors is an integer number (1034293680).

Almost surely, 2^12113500881 is an apocalyptic number.

It is an amenable number.

12113500881 is a deficient number, since it is larger than the sum of its proper divisors (4435197999).

12113500881 is a wasteful number, since it uses less digits than its factorization.

12113500881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20456.

The product of its (nonzero) digits is 1920, while the sum is 30.

The spelling of 12113500881 in words is "twelve billion, one hundred thirteen million, five hundred thousand, eight hundred eighty-one".