331020113131 has 8 divisors (see below), whose sum is σ = 331472739024. Its totient is φ = 330567663360.

The previous prime is 331020113093. The next prime is 331020113201. The reversal of 331020113131 is 131311020133.

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

It is a cyclic number.

It is not a de Polignac number, because 331020113131 - 2²³ = 331011724523 is a prime.

It is a super-2 number, since 2×331020113131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331020113099 and 331020113108.

It is not an unprimeable number, because it can be changed into a prime (331020113231) 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, 3964591 + ... + 4047223.

It is an arithmetic number, because the mean of its divisors is an integer number (41434092378).

Almost surely, 2^331020113131 is an apocalyptic number.

331020113131 is a deficient number, since it is larger than the sum of its proper divisors (452625893).

331020113131 is an equidigital number, since it uses as much as digits as its factorization.

331020113131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88061.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 331020113131 its reverse (131311020133), we get a palindrome (462331133264).

The spelling of 331020113131 in words is "three hundred thirty-one billion, twenty million, one hundred thirteen thousand, one hundred thirty-one".