320430223 has 2 divisors, whose sum is σ = 320430224. Its totient is φ = 320430222.

The previous prime is 320430199. The next prime is 320430233. The reversal of 320430223 is 322034023.

It is a strong prime.

It is an emirp because it is prime and its reverse (322034023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320430223 - 2⁵ = 320430191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320430223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320430233) 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, 160215111 + 160215112.

It is an arithmetic number, because the mean of its divisors is an integer number (160215112).

Almost surely, 2^320430223 is an apocalyptic number.

320430223 is a deficient number, since it is larger than the sum of its proper divisors (1).

320430223 is an equidigital number, since it uses as much as digits as its factorization.

320430223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 320430223 is about 17900.5648793551. The cubic root of 320430223 is about 684.2967709780.

Adding to 320430223 its reverse (322034023), we get a palindrome (642464246).

The spelling of 320430223 in words is "three hundred twenty million, four hundred thirty thousand, two hundred twenty-three".