131331231012 has 48 divisors (see below), whose sum is σ = 313374700800. Its totient is φ = 42794631840.

The previous prime is 131331230981. The next prime is 131331231043. The reversal of 131331231012 is 210132133131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131331230981) and next prime (131331231043).

It is a self number, because there is not a number n which added to its sum of digits gives 131331231012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391414 + ... + 644877.

It is an arithmetic number, because the mean of its divisors is an integer number (6528639600).

Almost surely, 2^131331231012 is an apocalyptic number.

131331231012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131331231012 is an abundant number, since it is smaller than the sum of its proper divisors (182043469788).

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

131331231012 is a wasteful number, since it uses less digits than its factorization.

131331231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036536 (or 1036534 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 131331231012 its reverse (210132133131), we get a palindrome (341463364143).

The spelling of 131331231012 in words is "one hundred thirty-one billion, three hundred thirty-one million, two hundred thirty-one thousand, twelve".