3112331213 has 4 divisors (see below), whose sum is σ = 3113425728. Its totient is φ = 3111236700.

The previous prime is 3112331177. The next prime is 3112331231. The reversal of 3112331213 is 3121332113.

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 3112331213 - 2¹⁰ = 3112330189 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 (3112331413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542981 + ... + 548682.

It is an arithmetic number, because the mean of its divisors is an integer number (778356432).

Almost surely, 2^3112331213 is an apocalyptic number.

It is an amenable number.

3112331213 is a deficient number, since it is larger than the sum of its proper divisors (1094515).

3112331213 is a wasteful number, since it uses less digits than its factorization.

3112331213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094514.

The product of its digits is 324, while the sum is 20.

The square root of 3112331213 is about 55788.2712852800. The cubic root of 3112331213 is about 1460.0305261960.

Adding to 3112331213 its reverse (3121332113), we get a palindrome (6233663326).

The spelling of 3112331213 in words is "three billion, one hundred twelve million, three hundred thirty-one thousand, two hundred thirteen".