131115320304031 has 16 divisors (see below), whose sum is σ = 150092643898944. Its totient is φ = 112199642774784.

The previous prime is 131115320304013. The next prime is 131115320304037. The reversal of 131115320304031 is 130403023511131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131115320304031 - 2²¹ = 131115318206879 is a prime.

It is a super-2 number, since 2×131115320304031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131115320304037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383929605 + ... + 384270961.

It is an arithmetic number, because the mean of its divisors is an integer number (9380790243684).

Almost surely, 2^{131115320304031} is an apocalyptic number.

131115320304031 is a deficient number, since it is larger than the sum of its proper divisors (18977323594913).

131115320304031 is an equidigital number, since it uses as much as digits as its factorization.

131115320304031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431490.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 131115320304031 its reverse (130403023511131), we get a palindrome (261518343815162).

The spelling of 131115320304031 in words is "one hundred thirty-one trillion, one hundred fifteen billion, three hundred twenty million, three hundred four thousand, thirty-one".