317206223 has 2 divisors, whose sum is σ = 317206224. Its totient is φ = 317206222.

The previous prime is 317206193. The next prime is 317206259. The reversal of 317206223 is 322602713.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 317206223 - 2²⁶ = 250097359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 317206192 and 317206201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317206423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158603111 + 158603112.

It is an arithmetic number, because the mean of its divisors is an integer number (158603112).

Almost surely, 2^317206223 is an apocalyptic number.

317206223 is a deficient number, since it is larger than the sum of its proper divisors (1).

317206223 is an equidigital number, since it uses as much as digits as its factorization.

317206223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 317206223 is about 17810.2841920055. The cubic root of 317206223 is about 681.9940194635.

Adding to 317206223 its reverse (322602713), we get a palindrome (639808936).

The spelling of 317206223 in words is "three hundred seventeen million, two hundred six thousand, two hundred twenty-three".