313323305 has 4 divisors (see below), whose sum is σ = 375987972. Its totient is φ = 250658640.

The previous prime is 313323301. The next prime is 313323317. The reversal of 313323305 is 503323313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503323313 = 7243 ⋅69491.

It can be written as a sum of positive squares in 2 ways, for example, as 201725209 + 111598096 = 14203^2 + 10564^2 .

It is not a de Polignac number, because 313323305 - 2² = 313323301 is a prime.

It is a super-2 number, since 2×313323305² = 196342986912246050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313323301) 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, 31332326 + ... + 31332335.

It is an arithmetic number, because the mean of its divisors is an integer number (93996993).

Almost surely, 2^313323305 is an apocalyptic number.

It is an amenable number.

313323305 is a deficient number, since it is larger than the sum of its proper divisors (62664667).

313323305 is an equidigital number, since it uses as much as digits as its factorization.

313323305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62664666.

The product of its (nonzero) digits is 2430, while the sum is 23.

The square root of 313323305 is about 17700.9407942064. The cubic root of 313323305 is about 679.1998265182.

Adding to 313323305 its reverse (503323313), we get a palindrome (816646618).

The spelling of 313323305 in words is "three hundred thirteen million, three hundred twenty-three thousand, three hundred five".