3121330231313 has 16 divisors (see below), whose sum is σ = 3572607617280. Its totient is φ = 2671396728000.

The previous prime is 3121330231297. The next prime is 3121330231337. The reversal of 3121330231313 is 3131320331213.

It is not a de Polignac number, because 3121330231313 - 2⁴ = 3121330231297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121330231913) 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, 113774708 + ... + 113802138.

It is an arithmetic number, because the mean of its divisors is an integer number (223287976080).

Almost surely, 2^{3121330231313} is an apocalyptic number.

It is an amenable number.

3121330231313 is a deficient number, since it is larger than the sum of its proper divisors (451277385967).

3121330231313 is a wasteful number, since it uses less digits than its factorization.

3121330231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51328.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 3121330231313 its reverse (3131320331213), we get a palindrome (6252650562526).

The spelling of 3121330231313 in words is "three trillion, one hundred twenty-one billion, three hundred thirty million, two hundred thirty-one thousand, three hundred thirteen".