331201230031321 has 16 divisors (see below), whose sum is σ = 375453713736640. Its totient is φ = 289631206612800.

The previous prime is 331201230031277. The next prime is 331201230031327. The reversal of 331201230031321 is 123130032102133.

It is not a de Polignac number, because 331201230031321 - 2¹⁷ = 331201229900249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331201230031327) 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, 26924326 + ... + 37246768.

It is an arithmetic number, because the mean of its divisors is an integer number (23465857108540).

Almost surely, 2^{331201230031321} is an apocalyptic number.

It is an amenable number.

331201230031321 is a deficient number, since it is larger than the sum of its proper divisors (44252483705319).

331201230031321 is a wasteful number, since it uses less digits than its factorization.

331201230031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10452376.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 331201230031321 its reverse (123130032102133), we get a palindrome (454331262133454).

The spelling of 331201230031321 in words is "three hundred thirty-one trillion, two hundred one billion, two hundred thirty million, thirty-one thousand, three hundred twenty-one".