313043243 has 2 divisors, whose sum is σ = 313043244. Its totient is φ = 313043242.

The previous prime is 313043209. The next prime is 313043257. The reversal of 313043243 is 342340313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313043243 - 2²⁰ = 311994667 is a prime.

It is not a weakly prime, because it can be changed into another prime (313042243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156521621 + 156521622.

It is an arithmetic number, because the mean of its divisors is an integer number (156521622).

Almost surely, 2^313043243 is an apocalyptic number.

313043243 is a deficient number, since it is larger than the sum of its proper divisors (1).

313043243 is an equidigital number, since it uses as much as digits as its factorization.

313043243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 313043243 is about 17693.0280901829. The cubic root of 313043243 is about 678.9974000767.

Adding to 313043243 its reverse (342340313), we get a palindrome (655383556).

The spelling of 313043243 in words is "three hundred thirteen million, forty-three thousand, two hundred forty-three".