323203213 has 2 divisors, whose sum is σ = 323203214. Its totient is φ = 323203212.

The previous prime is 323203211. The next prime is 323203249. The reversal of 323203213 is 312302323.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231100804 + 92102409 = 15202^2 + 9597^2 .

It is a cyclic number.

It is not a de Polignac number, because 323203213 - 2¹ = 323203211 is a prime.

Together with 323203211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323203211) 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, 161601606 + 161601607.

It is an arithmetic number, because the mean of its divisors is an integer number (161601607).

Almost surely, 2^323203213 is an apocalyptic number.

It is an amenable number.

323203213 is a deficient number, since it is larger than the sum of its proper divisors (1).

323203213 is an equidigital number, since it uses as much as digits as its factorization.

323203213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 323203213 is about 17977.8534035630. The cubic root of 323203213 is about 686.2650627360.

Adding to 323203213 its reverse (312302323), we get a palindrome (635505536).

The spelling of 323203213 in words is "three hundred twenty-three million, two hundred three thousand, two hundred thirteen".