12133431112 has 16 divisors (see below), whose sum is σ = 24818382000. Its totient is φ = 5515195920.

The previous prime is 12133431091. The next prime is 12133431119. The reversal of 12133431112 is 21113433121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12133431119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68939862 + ... + 68940037.

It is an arithmetic number, because the mean of its divisors is an integer number (1551148875).

Almost surely, 2^12133431112 is an apocalyptic number.

It is an amenable number.

12133431112 is an abundant number, since it is smaller than the sum of its proper divisors (12684950888).

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

12133431112 is a wasteful number, since it uses less digits than its factorization.

12133431112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137879916 (or 137879912 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

Adding to 12133431112 its reverse (21113433121), we get a palindrome (33246864233).

The spelling of 12133431112 in words is "twelve billion, one hundred thirty-three million, four hundred thirty-one thousand, one hundred twelve".