320420423399 has 16 divisors (see below), whose sum is σ = 328426657152. Its totient is φ = 312464625408.

The previous prime is 320420423381. The next prime is 320420423413. The reversal of 320420423399 is 993324024023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320420423399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320420428399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56678657 + ... + 56684309.

It is an arithmetic number, because the mean of its divisors is an integer number (20526666072).

Almost surely, 2^320420423399 is an apocalyptic number.

320420423399 is a deficient number, since it is larger than the sum of its proper divisors (8006233753).

320420423399 is a wasteful number, since it uses less digits than its factorization.

320420423399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9866.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 320420423399 in words is "three hundred twenty billion, four hundred twenty million, four hundred twenty-three thousand, three hundred ninety-nine".