331301330131 has 4 divisors (see below), whose sum is σ = 331580439432. Its totient is φ = 331022220832.

The previous prime is 331301330123. The next prime is 331301330149. The reversal of 331301330131 is 131033103133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131033103133 = 1103 ⋅118797011.

It is a cyclic number.

It is not a de Polignac number, because 331301330131 - 2³ = 331301330123 is a prime.

It is a super-2 number, since 2×331301330131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331301030131) 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, 139552870 + ... + 139555243.

It is an arithmetic number, because the mean of its divisors is an integer number (82895109858).

Almost surely, 2^331301330131 is an apocalyptic number.

331301330131 is a deficient number, since it is larger than the sum of its proper divisors (279109301).

331301330131 is a wasteful number, since it uses less digits than its factorization.

331301330131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279109300.

The product of its (nonzero) digits is 729, while the sum is 22.

Adding to 331301330131 its reverse (131033103133), we get a palindrome (462334433264).

The spelling of 331301330131 in words is "three hundred thirty-one billion, three hundred one million, three hundred thirty thousand, one hundred thirty-one".