323200081961 has 2 divisors, whose sum is σ = 323200081962. Its totient is φ = 323200081960.

The previous prime is 323200081949. The next prime is 323200082039. The reversal of 323200081961 is 169180002323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204106071961 + 119094010000 = 451781^2 + 345100^2 .

It is a cyclic number.

It is not a de Polignac number, because 323200081961 - 2²² = 323195887657 is a prime.

It is not a weakly prime, because it can be changed into another prime (323200081921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161600040980 + 161600040981.

It is an arithmetic number, because the mean of its divisors is an integer number (161600040981).

Almost surely, 2^323200081961 is an apocalyptic number.

It is an amenable number.

323200081961 is a deficient number, since it is larger than the sum of its proper divisors (1).

323200081961 is an equidigital number, since it uses as much as digits as its factorization.

323200081961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 323200081961 in words is "three hundred twenty-three billion, two hundred million, eighty-one thousand, nine hundred sixty-one".