320403221104443 has 32 divisors (see below), whose sum is σ = 430169246999040. Its totient is φ = 212121239616000.

The previous prime is 320403221104387. The next prime is 320403221104511. The reversal of 320403221104443 is 344401122304023.

It is not a de Polignac number, because 320403221104443 - 2²⁹ = 320402684233531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320403221114443) 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, 12730060963 + ... + 12730086131.

It is an arithmetic number, because the mean of its divisors is an integer number (13442788968720).

Almost surely, 2^{320403221104443} is an apocalyptic number.

320403221104443 is a deficient number, since it is larger than the sum of its proper divisors (109766025894597).

320403221104443 is a wasteful number, since it uses less digits than its factorization.

320403221104443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39587.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 320403221104443 its reverse (344401122304023), we get a palindrome (664804343408466).

The spelling of 320403221104443 in words is "three hundred twenty trillion, four hundred three billion, two hundred twenty-one million, one hundred four thousand, four hundred forty-three".