323220413 has 2 divisors, whose sum is σ = 323220414. Its totient is φ = 323220412.

The previous prime is 323220319. The next prime is 323220427. The reversal of 323220413 is 314022323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162894169 + 160326244 = 12763^2 + 12662^2 .

It is a cyclic number.

It is not a de Polignac number, because 323220413 - 2¹⁸ = 322958269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323220463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161610206 + 161610207.

It is an arithmetic number, because the mean of its divisors is an integer number (161610207).

Almost surely, 2^323220413 is an apocalyptic number.

It is an amenable number.

323220413 is a deficient number, since it is larger than the sum of its proper divisors (1).

323220413 is an equidigital number, since it uses as much as digits as its factorization.

323220413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 323220413 is about 17978.3317635425. The cubic root of 323220413 is about 686.2772362429.

Adding to 323220413 its reverse (314022323), we get a palindrome (637242736).

The spelling of 323220413 in words is "three hundred twenty-three million, two hundred twenty thousand, four hundred thirteen".