331044864421 has 4 divisors (see below), whose sum is σ = 331051607200. Its totient is φ = 331038121644.

The previous prime is 331044864407. The next prime is 331044864439. The reversal of 331044864421 is 124468440133.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-331044864421 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 (331044964421) 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, 3297201 + ... + 3396118.

It is an arithmetic number, because the mean of its divisors is an integer number (82762901800).

Almost surely, 2^331044864421 is an apocalyptic number.

It is an amenable number.

331044864421 is a deficient number, since it is larger than the sum of its proper divisors (6742779).

331044864421 is an equidigital number, since it uses as much as digits as its factorization.

331044864421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6742778.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 331044864421 in words is "three hundred thirty-one billion, forty-four million, eight hundred sixty-four thousand, four hundred twenty-one".