131337644320 has 48 divisors (see below), whose sum is σ = 312143243328. Its totient is φ = 52220465920.

The previous prime is 131337644309. The next prime is 131337644329. The reversal of 131337644320 is 23446733131.

It is a self number, because there is not a number n which added to its sum of digits gives 131337644320.

It is not an unprimeable number, because it can be changed into a prime (131337644329) 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, 2430946 + ... + 2484385.

It is an arithmetic number, because the mean of its divisors is an integer number (6502984236).

Almost surely, 2^131337644320 is an apocalyptic number.

131337644320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131337644320 is an abundant number, since it is smaller than the sum of its proper divisors (180805599008).

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

131337644320 is a wasteful number, since it uses less digits than its factorization.

131337644320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4915513 (or 4915505 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 37.

The spelling of 131337644320 in words is "one hundred thirty-one billion, three hundred thirty-seven million, six hundred forty-four thousand, three hundred twenty".