331123010231 has 16 divisors (see below), whose sum is σ = 362065365984. Its totient is φ = 300975865344.

The previous prime is 331123010177. The next prime is 331123010233. The reversal of 331123010231 is 132010321133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331123010231 is a prime.

It is a super-2 number, since 2×331123010231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331123010233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302780 + ... + 868286.

It is an arithmetic number, because the mean of its divisors is an integer number (22629085374).

Almost surely, 2^331123010231 is an apocalyptic number.

331123010231 is a deficient number, since it is larger than the sum of its proper divisors (30942355753).

331123010231 is a wasteful number, since it uses less digits than its factorization.

331123010231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566210.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 331123010231 its reverse (132010321133), we get a palindrome (463133331364).

The spelling of 331123010231 in words is "three hundred thirty-one billion, one hundred twenty-three million, ten thousand, two hundred thirty-one".