320383405399 has 2 divisors, whose sum is σ = 320383405400. Its totient is φ = 320383405398.

The previous prime is 320383405387. The next prime is 320383405469. The reversal of 320383405399 is 993504383023.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320383405399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320383405369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160191702699 + 160191702700.

It is an arithmetic number, because the mean of its divisors is an integer number (160191702700).

Almost surely, 2^320383405399 is an apocalyptic number.

320383405399 is a deficient number, since it is larger than the sum of its proper divisors (1).

320383405399 is an equidigital number, since it uses as much as digits as its factorization.

320383405399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 49.

The spelling of 320383405399 in words is "three hundred twenty billion, three hundred eighty-three million, four hundred five thousand, three hundred ninety-nine".