323000813 has 2 divisors, whose sum is σ = 323000814. Its totient is φ = 323000812.

The previous prime is 323000809. The next prime is 323000831. The reversal of 323000813 is 318000323.

Together with next prime (323000831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284833129 + 38167684 = 16877^2 + 6178^2 .

It is a cyclic number.

It is not a de Polignac number, because 323000813 - 2² = 323000809 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323000803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161500406 + 161500407.

It is an arithmetic number, because the mean of its divisors is an integer number (161500407).

Almost surely, 2^323000813 is an apocalyptic number.

It is an amenable number.

323000813 is a deficient number, since it is larger than the sum of its proper divisors (1).

323000813 is an equidigital number, since it uses as much as digits as its factorization.

323000813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 323000813 is about 17972.2233738622. The cubic root of 323000813 is about 686.1217792457.

The spelling of 323000813 in words is "three hundred twenty-three million, eight hundred thirteen", and thus it is an aban number.