131320622661 has 8 divisors (see below), whose sum is σ = 184309645920. Its totient is φ = 82939340592.

The previous prime is 131320622579. The next prime is 131320622683. The reversal of 131320622661 is 166226023131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131320622661 - 2¹⁵ = 131320589893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320622561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151935230 + ... + 1151935343.

It is an arithmetic number, because the mean of its divisors is an integer number (23038705740).

Almost surely, 2^131320622661 is an apocalyptic number.

It is an amenable number.

131320622661 is a deficient number, since it is larger than the sum of its proper divisors (52989023259).

131320622661 is a wasteful number, since it uses less digits than its factorization.

131320622661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303870595.

The product of its (nonzero) digits is 15552, while the sum is 33.

Adding to 131320622661 its reverse (166226023131), we get a palindrome (297546645792).

The spelling of 131320622661 in words is "one hundred thirty-one billion, three hundred twenty million, six hundred twenty-two thousand, six hundred sixty-one".