320959430399 has 2 divisors, whose sum is σ = 320959430400. Its totient is φ = 320959430398.

The previous prime is 320959430371. The next prime is 320959430447. The reversal of 320959430399 is 993034959023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320959430399 - 2¹² = 320959426303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320959430359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160479715199 + 160479715200.

It is an arithmetic number, because the mean of its divisors is an integer number (160479715200).

Almost surely, 2^320959430399 is an apocalyptic number.

320959430399 is a deficient number, since it is larger than the sum of its proper divisors (1).

320959430399 is an equidigital number, since it uses as much as digits as its factorization.

320959430399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7085880, while the sum is 56.

The spelling of 320959430399 in words is "three hundred twenty billion, nine hundred fifty-nine million, four hundred thirty thousand, three hundred ninety-nine".