313158031603 has 18 divisors (see below), whose sum is σ = 326013053652. Its totient is φ = 300645883440.

The previous prime is 313158031591. The next prime is 313158031609. The reversal of 313158031603 is 306130851313.

It is not a de Polignac number, because 313158031603 - 2²¹ = 313155934451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313158031609) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 223843498 + ... + 223844896.

It is an arithmetic number, because the mean of its divisors is an integer number (18111836314).

Almost surely, 2^313158031603 is an apocalyptic number.

313158031603 is a deficient number, since it is larger than the sum of its proper divisors (12855022049).

313158031603 is an frugal number, since it uses more digits than its factorization.

313158031603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 313158031603 its reverse (306130851313), we get a palindrome (619288882916).

The spelling of 313158031603 in words is "three hundred thirteen billion, one hundred fifty-eight million, thirty-one thousand, six hundred three".