3121231101313 has 24 divisors (see below), whose sum is σ = 3615880580480. Its totient is φ = 2677332752640.

The previous prime is 3121231101293. The next prime is 3121231101319. The reversal of 3121231101313 is 3131011321213.

It is not a de Polignac number, because 3121231101313 - 2¹⁷ = 3121230970241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121231101319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4961283 + ... + 5554888.

Almost surely, 2^{3121231101313} is an apocalyptic number.

It is an amenable number.

3121231101313 is a deficient number, since it is larger than the sum of its proper divisors (494649479167).

3121231101313 is a wasteful number, since it uses less digits than its factorization.

3121231101313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516297 (or 10516280 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 3121231101313 its reverse (3131011321213), we get a palindrome (6252242422526).

The spelling of 3121231101313 in words is "three trillion, one hundred twenty-one billion, two hundred thirty-one million, one hundred one thousand, three hundred thirteen".