315312403 has 6 divisors (see below), whose sum is σ = 366792036. Its totient is φ = 270267732.

The previous prime is 315312401. The next prime is 315312407. The reversal of 315312403 is 304213513.

It is not a de Polignac number, because 315312403 - 2¹ = 315312401 is a prime.

It is a super-2 number, since 2×315312403² = 198843822971268818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315312401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3217425 + ... + 3217522.

It is an arithmetic number, because the mean of its divisors is an integer number (61132006).

Almost surely, 2^315312403 is an apocalyptic number.

315312403 is a deficient number, since it is larger than the sum of its proper divisors (51479633).

315312403 is an equidigital number, since it uses as much as digits as its factorization.

315312403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434961 (or 6434954 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 315312403 is about 17757.0381257686. The cubic root of 315312403 is about 680.6340704819.

Adding to 315312403 its reverse (304213513), we get a palindrome (619525916).

The spelling of 315312403 in words is "three hundred fifteen million, three hundred twelve thousand, four hundred three".