313443313 has 4 divisors (see below), whose sum is σ = 313515520. Its totient is φ = 313371108.

The previous prime is 313443301. The next prime is 313443337. The reversal of 313443313 is 313344313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313344313 = 11423 ⋅27431.

It is a cyclic number.

It is not a de Polignac number, because 313443313 - 2²⁵ = 279888881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313440313) 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, 29145 + ... + 38422.

It is an arithmetic number, because the mean of its divisors is an integer number (78378880).

Almost surely, 2^313443313 is an apocalyptic number.

It is an amenable number.

313443313 is a deficient number, since it is larger than the sum of its proper divisors (72207).

313443313 is an equidigital number, since it uses as much as digits as its factorization.

313443313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72206.

The product of its digits is 3888, while the sum is 25.

The square root of 313443313 is about 17704.3303459916. The cubic root of 313443313 is about 679.2865303661.

Adding to 313443313 its reverse (313344313), we get a palindrome (626787626).

The spelling of 313443313 in words is "three hundred thirteen million, four hundred forty-three thousand, three hundred thirteen".