331020323320 has 64 divisors (see below), whose sum is σ = 784341540000. Its totient is φ = 125383915008.

The previous prime is 331020323311. The next prime is 331020323323. The reversal of 331020323320 is 23323020133.

It is a junction number, because it is equal to n+sod(n) for n = 331020323291 and 331020323300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331020323323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1647706 + ... + 1837654.

Almost surely, 2^331020323320 is an apocalyptic number.

It is an amenable number.

331020323320 is an abundant number, since it is smaller than the sum of its proper divisors (453321216680).

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

331020323320 is a wasteful number, since it uses less digits than its factorization.

331020323320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192272 (or 192268 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 331020323320 its reverse (23323020133), we get a palindrome (354343343453).

The spelling of 331020323320 in words is "three hundred thirty-one billion, twenty million, three hundred twenty-three thousand, three hundred twenty".