320435760222391 has 32 divisors (see below), whose sum is σ = 372040721568000. Its totient is φ = 272757015897600.

The previous prime is 320435760222379. The next prime is 320435760222421. The reversal of 320435760222391 is 193222067534023.

It is a cyclic number.

It is not a de Polignac number, because 320435760222391 - 2²³ = 320435751833783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320435760922391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24163836 + ... + 34996606.

It is an arithmetic number, because the mean of its divisors is an integer number (11626272549000).

Almost surely, 2^{320435760222391} is an apocalyptic number.

320435760222391 is a deficient number, since it is larger than the sum of its proper divisors (51604961345609).

320435760222391 is a wasteful number, since it uses less digits than its factorization.

320435760222391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10833615.

The product of its (nonzero) digits is 3265920, while the sum is 49.

The spelling of 320435760222391 in words is "three hundred twenty trillion, four hundred thirty-five billion, seven hundred sixty million, two hundred twenty-two thousand, three hundred ninety-one".