331230044402021 has 8 divisors (see below), whose sum is σ = 339310125743064. Its totient is φ = 323150024954880.

The previous prime is 331230044402009. The next prime is 331230044402039. The reversal of 331230044402021 is 120204440032133.

It can be written as a sum of positive squares in 4 ways, for example, as 248615920996 + 330981428481025 = 498614^2 + 18192895^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 331230044402021 - 2⁴² = 326831997890917 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 (331230044402041) 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, 4546796 + ... + 26136821.

It is an arithmetic number, because the mean of its divisors is an integer number (42413765717883).

Almost surely, 2^{331230044402021} is an apocalyptic number.

It is an amenable number.

331230044402021 is a deficient number, since it is larger than the sum of its proper divisors (8080081341043).

331230044402021 is a wasteful number, since it uses less digits than its factorization.

331230044402021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30946951.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 331230044402021 its reverse (120204440032133), we get a palindrome (451434484434154).

The spelling of 331230044402021 in words is "three hundred thirty-one trillion, two hundred thirty billion, forty-four million, four hundred two thousand, twenty-one".