12131031332 has 36 divisors (see below), whose sum is σ = 24992881200. Its totient is φ = 5136367824.

The previous prime is 12131031317. The next prime is 12131031337. The reversal of 12131031332 is 23313013121.

It is not an unprimeable number, because it can be changed into a prime (12131031337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 356582 + ... + 389117.

It is an arithmetic number, because the mean of its divisors is an integer number (694246700).

Almost surely, 2^12131031332 is an apocalyptic number.

It is an amenable number.

12131031332 is an abundant number, since it is smaller than the sum of its proper divisors (12861849868).

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

12131031332 is a wasteful number, since it uses less digits than its factorization.

12131031332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745800 (or 745791 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12131031332 its reverse (23313013121), we get a palindrome (35444044453).

The spelling of 12131031332 in words is "twelve billion, one hundred thirty-one million, thirty-one thousand, three hundred thirty-two".