317501213 has 2 divisors, whose sum is σ = 317501214. Its totient is φ = 317501212.

The previous prime is 317501203. The next prime is 317501281. The reversal of 317501213 is 312105713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224610169 + 92891044 = 14987^2 + 9638^2 .

It is a cyclic number.

It is not a de Polignac number, because 317501213 - 2¹⁰ = 317500189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317501203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158750606 + 158750607.

It is an arithmetic number, because the mean of its divisors is an integer number (158750607).

Almost surely, 2^317501213 is an apocalyptic number.

It is an amenable number.

317501213 is a deficient number, since it is larger than the sum of its proper divisors (1).

317501213 is an equidigital number, since it uses as much as digits as its factorization.

317501213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 317501213 is about 17818.5637187737. The cubic root of 317501213 is about 682.2053636613.

Adding to 317501213 its reverse (312105713), we get a palindrome (629606926).

The spelling of 317501213 in words is "three hundred seventeen million, five hundred one thousand, two hundred thirteen".