131202022431321 has 8 divisors (see below), whose sum is σ = 194373366564960. Its totient is φ = 87468014954196.

The previous prime is 131202022431281. The next prime is 131202022431329. The reversal of 131202022431321 is 123134220202131.

131202022431321 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 0 + 202 + 2 + 431 + 3 + 21 = 666.

It is not a de Polignac number, because 131202022431321 - 2¹⁸ = 131202022169177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4859334164123 = 131202022431321 / (1 + 3 + 1 + 2 + 0 + 2 + 0 + 2 + 2 + 4 + 3 + 1 + 3 + 2 + 1).

It is not an unprimeable number, because it can be changed into a prime (131202022431329) 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, 2429667082035 + ... + 2429667082088.

It is an arithmetic number, because the mean of its divisors is an integer number (24296670820620).

Almost surely, 2^{131202022431321} is an apocalyptic number.

It is an amenable number.

131202022431321 is a deficient number, since it is larger than the sum of its proper divisors (63171344133639).

131202022431321 is an equidigital number, since it uses as much as digits as its factorization.

131202022431321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4859334164132 (or 4859334164126 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 131202022431321 its reverse (123134220202131), we get a palindrome (254336242633452).

The spelling of 131202022431321 in words is "one hundred thirty-one trillion, two hundred two billion, twenty-two million, four hundred thirty-one thousand, three hundred twenty-one".