323308813 has 2 divisors, whose sum is σ = 323308814. Its totient is φ = 323308812.

The previous prime is 323308753. The next prime is 323308823. The reversal of 323308813 is 318803323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193849929 + 129458884 = 13923^2 + 11378^2 .

It is a cyclic number.

It is not a de Polignac number, because 323308813 - 2¹⁷ = 323177741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323308823) 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, 161654406 + 161654407.

It is an arithmetic number, because the mean of its divisors is an integer number (161654407).

Almost surely, 2^323308813 is an apocalyptic number.

It is an amenable number.

323308813 is a deficient number, since it is larger than the sum of its proper divisors (1).

323308813 is an equidigital number, since it uses as much as digits as its factorization.

323308813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 323308813 is about 17980.7901105597. The cubic root of 323308813 is about 686.3397955939.

It can be divided in two parts, 323 and 308813, that added together give a square (309136 = 556²).

The spelling of 323308813 in words is "three hundred twenty-three million, three hundred eight thousand, eight hundred thirteen".