324223213 has 2 divisors, whose sum is σ = 324223214. Its totient is φ = 324223212.

The previous prime is 324223187. The next prime is 324223217. The reversal of 324223213 is 312322423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219099204 + 105124009 = 14802^2 + 10253^2 .

It is a cyclic number.

It is not a de Polignac number, because 324223213 - 2²¹ = 322126061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (324223217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162111606 + 162111607.

It is an arithmetic number, because the mean of its divisors is an integer number (162111607).

Almost surely, 2^324223213 is an apocalyptic number.

It is an amenable number.

324223213 is a deficient number, since it is larger than the sum of its proper divisors (1).

324223213 is an equidigital number, since it uses as much as digits as its factorization.

324223213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 22.

The square root of 324223213 is about 18006.1992935766. The cubic root of 324223213 is about 686.9862346958.

Adding to 324223213 its reverse (312322423), we get a palindrome (636545636).

The spelling of 324223213 in words is "three hundred twenty-four million, two hundred twenty-three thousand, two hundred thirteen".