3121332012013 has 16 divisors (see below), whose sum is σ = 3260199870720. Its totient is φ = 2985338462400.

The previous prime is 3121332012011. The next prime is 3121332012041. The reversal of 3121332012013 is 3102102331213.

It is a cyclic number.

It is not a de Polignac number, because 3121332012013 - 2¹ = 3121332012011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121332012011) 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, 72871143 + ... + 72913963.

It is an arithmetic number, because the mean of its divisors is an integer number (203762491920).

Almost surely, 2^{3121332012013} is an apocalyptic number.

It is an amenable number.

3121332012013 is a deficient number, since it is larger than the sum of its proper divisors (138867858707).

3121332012013 is a wasteful number, since it uses less digits than its factorization.

3121332012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76308.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 3121332012013 its reverse (3102102331213), we get a palindrome (6223434343226).

The spelling of 3121332012013 in words is "three trillion, one hundred twenty-one billion, three hundred thirty-two million, twelve thousand, thirteen".