3121313123231 has 8 divisors (see below), whose sum is σ = 3138214992000. Its totient is φ = 3104423423640.

The previous prime is 3121313123213. The next prime is 3121313123333. The reversal of 3121313123231 is 1323213131213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3121313123231 - 2³⁰ = 3120239381407 is a prime.

It is a super-2 number, since 2×3121313123231² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3121313123231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121313123531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2527685 + ... + 3554126.

It is an arithmetic number, because the mean of its divisors is an integer number (392276874000).

Almost surely, 2^{3121313123231} is an apocalyptic number.

3121313123231 is a deficient number, since it is larger than the sum of its proper divisors (16901868769).

3121313123231 is a wasteful number, since it uses less digits than its factorization.

3121313123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6084589.

The product of its digits is 1944, while the sum is 26.

Adding to 3121313123231 its reverse (1323213131213), we get a palindrome (4444526254444).

The spelling of 3121313123231 in words is "three trillion, one hundred twenty-one billion, three hundred thirteen million, one hundred twenty-three thousand, two hundred thirty-one".