331023133112321 has 4 divisors (see below), whose sum is σ = 356486451044052. Its totient is φ = 305559815180592.

The previous prime is 331023133112297. The next prime is 331023133112341. The reversal of 331023133112321 is 123211331320133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72470079340096 + 258553053772225 = 8512936^2 + 16079585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331023133112321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331023133112341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12731658965846 + ... + 12731658965871.

It is an arithmetic number, because the mean of its divisors is an integer number (89121612761013).

Almost surely, 2^{331023133112321} is an apocalyptic number.

It is an amenable number.

331023133112321 is a deficient number, since it is larger than the sum of its proper divisors (25463317931731).

331023133112321 is a wasteful number, since it uses less digits than its factorization.

331023133112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25463317931730.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 331023133112321 its reverse (123211331320133), we get a palindrome (454234464432454).

The spelling of 331023133112321 in words is "three hundred thirty-one trillion, twenty-three billion, one hundred thirty-three million, one hundred twelve thousand, three hundred twenty-one".