320023304343191 has 2 divisors, whose sum is σ = 320023304343192. Its totient is φ = 320023304343190.

The previous prime is 320023304343161. The next prime is 320023304343251. The reversal of 320023304343191 is 191343403320023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320023304343191 - 2²² = 320023300148887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320023304343101) 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, 160011652171595 + 160011652171596.

It is an arithmetic number, because the mean of its divisors is an integer number (160011652171596).

Almost surely, 2^{320023304343191} is an apocalyptic number.

320023304343191 is a deficient number, since it is larger than the sum of its proper divisors (1).

320023304343191 is an equidigital number, since it uses as much as digits as its factorization.

320023304343191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 38.

The spelling of 320023304343191 in words is "three hundred twenty trillion, twenty-three billion, three hundred four million, three hundred forty-three thousand, one hundred ninety-one".