331311022320 has 40 divisors (see below), whose sum is σ = 1027064169936. Its totient is φ = 88349605888.

The previous prime is 331311022309. The next prime is 331311022331. The reversal of 331311022320 is 23220113133.

It is an interprime number because it is at equal distance from previous prime (331311022309) and next prime (331311022331).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690231057 + ... + 690231536.

Almost surely, 2^331311022320 is an apocalyptic number.

331311022320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331311022320 is an abundant number, since it is smaller than the sum of its proper divisors (695753147616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331311022320 is a wasteful number, since it uses less digits than its factorization.

331311022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380462609 (or 1380462603 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 331311022320 its reverse (23220113133), we get a palindrome (354531135453).

The spelling of 331311022320 in words is "three hundred thirty-one billion, three hundred eleven million, twenty-two thousand, three hundred twenty".