331623864021 has 8 divisors (see below), whose sum is σ = 442598226784. Its totient is φ = 220866038640.

The previous prime is 331623863999. The next prime is 331623864041. The reversal of 331623864021 is 120468326133.

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

It is not a de Polignac number, because 331623864021 - 2⁶ = 331623863957 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 (331623864041) 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, 54130771 + ... + 54136896.

It is an arithmetic number, because the mean of its divisors is an integer number (55324778348).

Almost surely, 2^331623864021 is an apocalyptic number.

It is an amenable number.

331623864021 is a deficient number, since it is larger than the sum of its proper divisors (110974362763).

331623864021 is a wasteful number, since it uses less digits than its factorization.

331623864021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108268691.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 331623864021 in words is "three hundred thirty-one billion, six hundred twenty-three million, eight hundred sixty-four thousand, twenty-one".