12131102232 has 96 divisors (see below), whose sum is σ = 33095256480. Its totient is φ = 4014259200.

The previous prime is 12131102227. The next prime is 12131102239. The reversal of 12131102232 is 23220113121.

12131102232 is a `hidden beast` number, since 121 + 311 + 0 + 2 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131102239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6380482 + ... + 6382382.

It is an arithmetic number, because the mean of its divisors is an integer number (344742255).

Almost surely, 2^12131102232 is an apocalyptic number.

12131102232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12131102232 is an abundant number, since it is smaller than the sum of its proper divisors (20964154248).

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

12131102232 is a wasteful number, since it uses less digits than its factorization.

12131102232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513 (or 2506 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12131102232 its reverse (23220113121), we get a palindrome (35351215353).

The spelling of 12131102232 in words is "twelve billion, one hundred thirty-one million, one hundred two thousand, two hundred thirty-two".