3031131213 has 48 divisors (see below), whose sum is σ = 4971972096. Its totient is φ = 1830101040.

The previous prime is 3031131163. The next prime is 3031131217. The reversal of 3031131213 is 3121311303.

It is a happy number.

3031131213 is a `hidden beast` number, since 30 + 311 + 312 + 13 = 666.

3031131213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3031131213 - 2⁶ = 3031131149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031131217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 754456 + ... + 758462.

It is an arithmetic number, because the mean of its divisors is an integer number (103582752).

Almost surely, 2^3031131213 is an apocalyptic number.

3031131213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3031131213 is a deficient number, since it is larger than the sum of its proper divisors (1940840883).

3031131213 is a wasteful number, since it uses less digits than its factorization.

3031131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316 (or 4304 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3031131213 is about 55055.7100853308. The cubic root of 3031131213 is about 1447.2211882123.

Adding to 3031131213 its reverse (3121311303), we get a palindrome (6152442516).

The spelling of 3031131213 in words is "three billion, thirty-one million, one hundred thirty-one thousand, two hundred thirteen".