31130303013 has 12 divisors (see below), whose sum is σ = 46416509568. Its totient is φ = 20084066280.

The previous prime is 31130302999. The next prime is 31130303021. The reversal of 31130303013 is 31030303113.

It is not a de Polignac number, because 31130303013 - 2⁹ = 31130302501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130303213) 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, 55788795 + ... + 55789352.

It is an arithmetic number, because the mean of its divisors is an integer number (3868042464).

Almost surely, 2^31130303013 is an apocalyptic number.

It is an amenable number.

31130303013 is a deficient number, since it is larger than the sum of its proper divisors (15286206555).

31130303013 is a wasteful number, since it uses less digits than its factorization.

31130303013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111578184 (or 111578181 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

Adding to 31130303013 its reverse (31030303113), we get a palindrome (62160606126).

The spelling of 31130303013 in words is "thirty-one billion, one hundred thirty million, three hundred three thousand, thirteen".