313340403 has 4 divisors (see below), whose sum is σ = 417787208. Its totient is φ = 208893600.

The previous prime is 313340387. The next prime is 313340407. The reversal of 313340403 is 304043313.

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

It is not a de Polignac number, because 313340403 - 2⁴ = 313340387 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 313340403.

It is not an unprimeable number, because it can be changed into a prime (313340407) 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, 52223398 + ... + 52223403.

It is an arithmetic number, because the mean of its divisors is an integer number (104446802).

Almost surely, 2^313340403 is an apocalyptic number.

313340403 is a deficient number, since it is larger than the sum of its proper divisors (104446805).

313340403 is a wasteful number, since it uses less digits than its factorization.

313340403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104446804.

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

The square root of 313340403 is about 17701.4237562971. The cubic root of 313340403 is about 679.2121809002.

Adding to 313340403 its reverse (304043313), we get a palindrome (617383716).

The spelling of 313340403 in words is "three hundred thirteen million, three hundred forty thousand, four hundred three".