313113289 has 2 divisors, whose sum is σ = 313113290. Its totient is φ = 313113288.

The previous prime is 313113287. The next prime is 313113323. The reversal of 313113289 is 982311313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299013264 + 14100025 = 17292^2 + 3755^2 .

It is an emirp because it is prime and its reverse (982311313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313113289 - 2¹ = 313113287 is a prime.

Together with 313113287, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 313113289.

It is not a weakly prime, because it can be changed into another prime (313113287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156556644 + 156556645.

It is an arithmetic number, because the mean of its divisors is an integer number (156556645).

Almost surely, 2^313113289 is an apocalyptic number.

It is an amenable number.

313113289 is a deficient number, since it is larger than the sum of its proper divisors (1).

313113289 is an equidigital number, since it uses as much as digits as its factorization.

313113289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 313113289 is about 17695.0074597328. The cubic root of 313113289 is about 679.0480400505.

The spelling of 313113289 in words is "three hundred thirteen million, one hundred thirteen thousand, two hundred eighty-nine".