131031323321232 has 20 divisors (see below), whose sum is σ = 338497585246640. Its totient is φ = 43677107773728.

The previous prime is 131031323321231. The next prime is 131031323321237. The reversal of 131031323321232 is 232123323130131.

It is a self number, because there is not a number n which added to its sum of digits gives 131031323321232.

It is not an unprimeable number, because it can be changed into a prime (131031323321231) 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, 1364909617882 + ... + 1364909617977.

It is an arithmetic number, because the mean of its divisors is an integer number (16924879262332).

Almost surely, 2^{131031323321232} is an apocalyptic number.

131031323321232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131031323321232 is an abundant number, since it is smaller than the sum of its proper divisors (207466261925408).

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

131031323321232 is a wasteful number, since it uses less digits than its factorization.

131031323321232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729819235870 (or 2729819235864 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 131031323321232 its reverse (232123323130131), we get a palindrome (363154646451363).

The spelling of 131031323321232 in words is "one hundred thirty-one trillion, thirty-one billion, three hundred twenty-three million, three hundred twenty-one thousand, two hundred thirty-two".