315311503 has 4 divisors (see below), whose sum is σ = 339566248. Its totient is φ = 291056760.

The previous prime is 315311483. The next prime is 315311527. The reversal of 315311503 is 305113513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305113513 = 41 ⋅7441793.

It is a cyclic number.

It is not a de Polignac number, because 315311503 - 2²⁵ = 281757071 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 (315317503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12127353 + ... + 12127378.

It is an arithmetic number, because the mean of its divisors is an integer number (84891562).

Almost surely, 2^315311503 is an apocalyptic number.

315311503 is a deficient number, since it is larger than the sum of its proper divisors (24254745).

315311503 is a wasteful number, since it uses less digits than its factorization.

315311503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24254744.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 315311503 is about 17757.0127836863. The cubic root of 315311503 is about 680.6334229006.

The spelling of 315311503 in words is "three hundred fifteen million, three hundred eleven thousand, five hundred three".