321232320023203 has 4 divisors (see below), whose sum is σ = 321640493238760. Its totient is φ = 320824146807648.

The previous prime is 321232320023159. The next prime is 321232320023221. The reversal of 321232320023203 is 302320023232123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321232320023203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321232320123203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204086606598 + ... + 204086608171.

It is an arithmetic number, because the mean of its divisors is an integer number (80410123309690).

Almost surely, 2^{321232320023203} is an apocalyptic number.

321232320023203 is a deficient number, since it is larger than the sum of its proper divisors (408173215557).

321232320023203 is an equidigital number, since it uses as much as digits as its factorization.

321232320023203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408173215556.

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

Adding to 321232320023203 its reverse (302320023232123), we get a palindrome (623552343255326).

The spelling of 321232320023203 in words is "three hundred twenty-one trillion, two hundred thirty-two billion, three hundred twenty million, twenty-three thousand, two hundred three".