131303232231312 has 40 divisors (see below), whose sum is σ = 344760672615040. Its totient is φ = 43050240074880.

The previous prime is 131303232231307. The next prime is 131303232231319. The reversal of 131303232231312 is 213132232303131.

It is a self number, because there is not a number n which added to its sum of digits gives 131303232231312.

It is not an unprimeable number, because it can be changed into a prime (131303232231319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22421997112 + ... + 22422002967.

It is an arithmetic number, because the mean of its divisors is an integer number (8619016815376).

Almost surely, 2^{131303232231312} is an apocalyptic number.

131303232231312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131303232231312 is an abundant number, since it is smaller than the sum of its proper divisors (213457440383728).

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

131303232231312 is a wasteful number, since it uses less digits than its factorization.

131303232231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44844000151 (or 44844000145 counting only the distinct ones).

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

Adding to 131303232231312 its reverse (213132232303131), we get a palindrome (344435464534443).

The spelling of 131303232231312 in words is "one hundred thirty-one trillion, three hundred three billion, two hundred thirty-two million, two hundred thirty-one thousand, three hundred twelve".