131321606123131 has 4 divisors (see below), whose sum is σ = 132107963046192. Its totient is φ = 130535249200072.

The previous prime is 131321606123119. The next prime is 131321606123203.

131321606123131 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131321606123131 is a prime.

It is a super-2 number, since 2×131321606123131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131321606123231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393178461280 + ... + 393178461613.

It is an arithmetic number, because the mean of its divisors is an integer number (33026990761548).

Almost surely, 2^{131321606123131} is an apocalyptic number.

131321606123131 is a deficient number, since it is larger than the sum of its proper divisors (786356923061).

131321606123131 is an equidigital number, since it uses as much as digits as its factorization.

131321606123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786356923060.

The product of its (nonzero) digits is 11664, while the sum is 34.

It can be divided in two parts, 13132160 and 6123131, that added together give a palindrome (19255291).

The spelling of 131321606123131 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, six hundred six million, one hundred twenty-three thousand, one hundred thirty-one".