313023426506 has 20 divisors (see below), whose sum is σ = 547758411762. Its totient is φ = 134152895016.

The previous prime is 313023426503. The next prime is 313023426509. The reversal of 313023426506 is 605624320313.

It is an interprime number because it is at equal distance from previous prime (313023426503) and next prime (313023426509).

It can be written as a sum of positive squares in only one way, i.e., 191681974225 + 121341452281 = 437815^2 + 348341^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (313023426503) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 32588225 + ... + 32597828.

Almost surely, 2^313023426506 is an apocalyptic number.

313023426506 is a deficient number, since it is larger than the sum of its proper divisors (234734985256).

313023426506 is an frugal number, since it uses more digits than its factorization.

313023426506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65186083 (or 65186062 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 313023426506 its reverse (605624320313), we get a palindrome (918647746819).

The spelling of 313023426506 in words is "three hundred thirteen billion, twenty-three million, four hundred twenty-six thousand, five hundred six".