3131310213 has 12 divisors (see below), whose sum is σ = 4539335788. Its totient is φ = 2080002240.

The previous prime is 3131310211. The next prime is 3131310227. The reversal of 3131310213 is 3120131313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 830477124 + 2300833089 = 28818^2 + 47967^2 .

It is not a de Polignac number, because 3131310213 - 2¹ = 3131310211 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 (3131310211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 625528 + ... + 630513.

Almost surely, 2^3131310213 is an apocalyptic number.

It is an amenable number.

3131310213 is a deficient number, since it is larger than the sum of its proper divisors (1408025575).

3131310213 is a wasteful number, since it uses less digits than its factorization.

3131310213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256324 (or 1256321 counting only the distinct ones).

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

The square root of 3131310213 is about 55958.1112351016. Note that the first 3 decimals coincide. The cubic root of 3131310213 is about 1462.9922701394.

Adding to 3131310213 its reverse (3120131313), we get a palindrome (6251441526).

The spelling of 3131310213 in words is "three billion, one hundred thirty-one million, three hundred ten thousand, two hundred thirteen".