331131300113021 has 4 divisors (see below), whose sum is σ = 333659019961344. Its totient is φ = 328603580264700.

The previous prime is 331131300112961. The next prime is 331131300113057. The reversal of 331131300113021 is 120311003131133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331131300113021 - 2²⁶ = 331131233004157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331131300113071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263859923965 + ... + 1263859924226.

It is an arithmetic number, because the mean of its divisors is an integer number (83414754990336).

Almost surely, 2^{331131300113021} is an apocalyptic number.

It is an amenable number.

331131300113021 is a deficient number, since it is larger than the sum of its proper divisors (2527719848323).

331131300113021 is a wasteful number, since it uses less digits than its factorization.

331131300113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527719848322.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 331131300113021 its reverse (120311003131133), we get a palindrome (451442303244154).

The spelling of 331131300113021 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, three hundred million, one hundred thirteen thousand, twenty-one".