320317223 has 2 divisors, whose sum is σ = 320317224. Its totient is φ = 320317222.

The previous prime is 320317199. The next prime is 320317237. The reversal of 320317223 is 322713023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320317223 - 2¹⁸ = 320055079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320317273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160158611 + 160158612.

It is an arithmetic number, because the mean of its divisors is an integer number (160158612).

Almost surely, 2^320317223 is an apocalyptic number.

320317223 is a deficient number, since it is larger than the sum of its proper divisors (1).

320317223 is an equidigital number, since it uses as much as digits as its factorization.

320317223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 320317223 is about 17897.4082760605. The cubic root of 320317223 is about 684.2163222344.

The spelling of 320317223 in words is "three hundred twenty million, three hundred seventeen thousand, two hundred twenty-three".