323020043239 has 2 divisors, whose sum is σ = 323020043240. Its totient is φ = 323020043238.

The previous prime is 323020043231. The next prime is 323020043273. The reversal of 323020043239 is 932340020323.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 323020043239 - 2³ = 323020043231 is a prime.

It is a super-2 number, since 2×323020043239² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 323020043239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323020043231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161510021619 + 161510021620.

It is an arithmetic number, because the mean of its divisors is an integer number (161510021620).

Almost surely, 2^323020043239 is an apocalyptic number.

323020043239 is a deficient number, since it is larger than the sum of its proper divisors (1).

323020043239 is an equidigital number, since it uses as much as digits as its factorization.

323020043239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 31.

The spelling of 323020043239 in words is "three hundred twenty-three billion, twenty million, forty-three thousand, two hundred thirty-nine".