331310321321 has 12 divisors (see below), whose sum is σ = 385512400080. Its totient is φ = 283898782440.

The previous prime is 331310321291. The next prime is 331310321359. The reversal of 331310321321 is 123123013133.

It is not a de Polignac number, because 331310321321 - 2⁶ = 331310321257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331310321371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 797351 + ... + 1139468.

It is an arithmetic number, because the mean of its divisors is an integer number (32126033340).

Almost surely, 2^331310321321 is an apocalyptic number.

It is an amenable number.

331310321321 is a deficient number, since it is larger than the sum of its proper divisors (54202078759).

331310321321 is a wasteful number, since it uses less digits than its factorization.

331310321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940324 (or 1940317 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 331310321321 its reverse (123123013133), we get a palindrome (454433334454).

The spelling of 331310321321 in words is "three hundred thirty-one billion, three hundred ten million, three hundred twenty-one thousand, three hundred twenty-one".