320232032320321 has 16 divisors (see below), whose sum is σ = 349542190525248. Its totient is φ = 290954914905600.

The previous prime is 320232032320171. The next prime is 320232032320331. The reversal of 320232032320321 is 123023230232023.

It is a happy number.

It is not a de Polignac number, because 320232032320321 - 2⁹ = 320232032319809 is a prime.

It is a super-2 number, since 2×320232032320321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320232032320321.

It is not an unprimeable number, because it can be changed into a prime (320232032320331) 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 in 15 ways as a sum of consecutive naturals, for example, 442662121 + ... + 443384953.

It is an arithmetic number, because the mean of its divisors is an integer number (21846386907828).

Almost surely, 2^{320232032320321} is an apocalyptic number.

It is an amenable number.

320232032320321 is a deficient number, since it is larger than the sum of its proper divisors (29310158204927).

320232032320321 is a wasteful number, since it uses less digits than its factorization.

320232032320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745632.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 320232032320321 its reverse (123023230232023), we get a palindrome (443255262552344).

The spelling of 320232032320321 in words is "three hundred twenty trillion, two hundred thirty-two billion, thirty-two million, three hundred twenty thousand, three hundred twenty-one".