323021213 has 2 divisors, whose sum is σ = 323021214. Its totient is φ = 323021212.

The previous prime is 323021207. The next prime is 323021219. The reversal of 323021213 is 312120323.

It is a balanced prime because it is at equal distance from previous prime (323021207) and next prime (323021219).

It can be written as a sum of positive squares in only one way, i.e., 250209124 + 72812089 = 15818^2 + 8533^2 .

It is a cyclic number.

It is not a de Polignac number, because 323021213 - 2¹⁰ = 323020189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 323021191 and 323021200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323021219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161510606 + 161510607.

It is an arithmetic number, because the mean of its divisors is an integer number (161510607).

Almost surely, 2^323021213 is an apocalyptic number.

It is an amenable number.

323021213 is a deficient number, since it is larger than the sum of its proper divisors (1).

323021213 is an equidigital number, since it uses as much as digits as its factorization.

323021213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 323021213 is about 17972.7909073688. The cubic root of 323021213 is about 686.1362235743.

Adding to 323021213 its reverse (312120323), we get a palindrome (635141536).

The spelling of 323021213 in words is "three hundred twenty-three million, twenty-one thousand, two hundred thirteen".