313304403 has 4 divisors (see below), whose sum is σ = 417739208. Its totient is φ = 208869600.

The previous prime is 313304399. The next prime is 313304417. The reversal of 313304403 is 304403313.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 313304403 - 2² = 313304399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313304403.

It is not an unprimeable number, because it can be changed into a prime (313304423) 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, 52217398 + ... + 52217403.

It is an arithmetic number, because the mean of its divisors is an integer number (104434802).

Almost surely, 2^313304403 is an apocalyptic number.

313304403 is a deficient number, since it is larger than the sum of its proper divisors (104434805).

313304403 is a wasteful number, since it uses less digits than its factorization.

313304403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104434804.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 313304403 is about 17700.4068597307. The cubic root of 313304403 is about 679.1861681095.

Adding to 313304403 its reverse (304403313), we get a palindrome (617707716).

The spelling of 313304403 in words is "three hundred thirteen million, three hundred four thousand, four hundred three".