31130313003 has 12 divisors (see below), whose sum is σ = 44971204200. Its totient is φ = 20751143616.

The previous prime is 31130312971. The next prime is 31130313017. The reversal of 31130313003 is 30031303113.

It is not a de Polignac number, because 31130313003 - 2⁵ = 31130312971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31130313043) 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, 115801 + ... + 275082.

It is an arithmetic number, because the mean of its divisors is an integer number (3747600350).

Almost surely, 2^31130313003 is an apocalyptic number.

31130313003 is a deficient number, since it is larger than the sum of its proper divisors (13840891197).

31130313003 is a wasteful number, since it uses less digits than its factorization.

31130313003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399738 (or 399735 counting only the distinct ones).

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

Adding to 31130313003 its reverse (30031303113), we get a palindrome (61161616116).

The spelling of 31130313003 in words is "thirty-one billion, one hundred thirty million, three hundred thirteen thousand, three".