323023213 has 2 divisors, whose sum is σ = 323023214. Its totient is φ = 323023212.

The previous prime is 323023177. The next prime is 323023223. The reversal of 323023213 is 312320323.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266277124 + 56746089 = 16318^2 + 7533^2 .

It is a cyclic number.

It is not a de Polignac number, because 323023213 - 2⁹ = 323022701 is a prime.

It is a super-2 number, since 2×323023213² = 208687992273686738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323023223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161511606 + 161511607.

It is an arithmetic number, because the mean of its divisors is an integer number (161511607).

Almost surely, 2^323023213 is an apocalyptic number.

It is an amenable number.

323023213 is a deficient number, since it is larger than the sum of its proper divisors (1).

323023213 is an equidigital number, since it uses as much as digits as its factorization.

323023213 is an evil number, because the sum of its binary digits is even.

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

The square root of 323023213 is about 17972.8465469441. The cubic root of 323023213 is about 686.1376396522.

Adding to 323023213 its reverse (312320323), we get a palindrome (635343536).

The spelling of 323023213 in words is "three hundred twenty-three million, twenty-three thousand, two hundred thirteen".