323020109989 has 2 divisors, whose sum is σ = 323020109990. Its totient is φ = 323020109988.

The previous prime is 323020109981. The next prime is 323020110041. The reversal of 323020109989 is 989901020323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320421659364 + 2598450625 = 566058^2 + 50975^2 .

It is a cyclic number.

It is not a de Polignac number, because 323020109989 - 2³ = 323020109981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323020109981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161510054994 + 161510054995.

It is an arithmetic number, because the mean of its divisors is an integer number (161510054995).

Almost surely, 2^323020109989 is an apocalyptic number.

It is an amenable number.

323020109989 is a deficient number, since it is larger than the sum of its proper divisors (1).

323020109989 is an equidigital number, since it uses as much as digits as its factorization.

323020109989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 323020109989 in words is "three hundred twenty-three billion, twenty million, one hundred nine thousand, nine hundred eighty-nine".