331131303033121 has 16 divisors (see below), whose sum is σ = 332415794499840. Its totient is φ = 329847584451840.

The previous prime is 331131303033107. The next prime is 331131303033133. The reversal of 331131303033121 is 121330303131133.

It is a cyclic number.

It is not a de Polignac number, because 331131303033121 - 2²⁷ = 331131168815393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331131303033121.

It is not an unprimeable number, because it can be changed into a prime (331131303033161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15177662605 + ... + 15177684421.

It is an arithmetic number, because the mean of its divisors is an integer number (20775987156240).

Almost surely, 2^{331131303033121} is an apocalyptic number.

It is an amenable number.

331131303033121 is a deficient number, since it is larger than the sum of its proper divisors (1284491466719).

331131303033121 is a wasteful number, since it uses less digits than its factorization.

331131303033121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36864.

The product of its (nonzero) digits is 4374, while the sum is 28.

Adding to 331131303033121 its reverse (121330303131133), we get a palindrome (452461606164254).

The spelling of 331131303033121 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, three hundred three million, thirty-three thousand, one hundred twenty-one".