331331022320 has 80 divisors (see below), whose sum is σ = 773918323200. Its totient is φ = 131918131200.

The previous prime is 331331022317. The next prime is 331331022349. The reversal of 331331022320 is 23220133133.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69039281 + ... + 69044079.

It is an arithmetic number, because the mean of its divisors is an integer number (9673979040).

Almost surely, 2^331331022320 is an apocalyptic number.

It is an amenable number.

331331022320 is an abundant number, since it is smaller than the sum of its proper divisors (442587300880).

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

331331022320 is a wasteful number, since it uses less digits than its factorization.

331331022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8634 (or 8628 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 331331022320 its reverse (23220133133), we get a palindrome (354551155453).

The spelling of 331331022320 in words is "three hundred thirty-one billion, three hundred thirty-one million, twenty-two thousand, three hundred twenty".