3131233213 has 12 divisors (see below), whose sum is σ = 3433566592. Its totient is φ = 2851968960.

The previous prime is 3131233199. The next prime is 3131233249. The reversal of 3131233213 is 3123321313.

It is not a de Polignac number, because 3131233213 - 2⁹ = 3131232701 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 (3131233253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165795 + ... + 183712.

Almost surely, 2^3131233213 is an apocalyptic number.

It is an amenable number.

3131233213 is a deficient number, since it is larger than the sum of its proper divisors (302333379).

3131233213 is a wasteful number, since it uses less digits than its factorization.

3131233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349572 (or 349555 counting only the distinct ones).

The product of its digits is 972, while the sum is 22.

The square root of 3131233213 is about 55957.4232162275. The cubic root of 3131233213 is about 1462.9802782126.

Adding to 3131233213 its reverse (3123321313), we get a palindrome (6254554526).

The spelling of 3131233213 in words is "three billion, one hundred thirty-one million, two hundred thirty-three thousand, two hundred thirteen".