3031123211213 has 4 divisors (see below), whose sum is σ = 3033585538368. Its totient is φ = 3028660884060.

The previous prime is 3031123211201. The next prime is 3031123211227. The reversal of 3031123211213 is 3121123211303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3031123211213 - 2¹⁰ = 3031123210189 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 (3031123211713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231161731 + ... + 1231164192.

It is an arithmetic number, because the mean of its divisors is an integer number (758396384592).

Almost surely, 2^{3031123211213} is an apocalyptic number.

It is an amenable number.

3031123211213 is a deficient number, since it is larger than the sum of its proper divisors (2462327155).

3031123211213 is a wasteful number, since it uses less digits than its factorization.

3031123211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462327154.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 3031123211213 its reverse (3121123211303), we get a palindrome (6152246422516).

The spelling of 3031123211213 in words is "three trillion, thirty-one billion, one hundred twenty-three million, two hundred eleven thousand, two hundred thirteen".