321321200023 has 4 divisors (see below), whose sum is σ = 321327329440. Its totient is φ = 321315070608.

The previous prime is 321321199993. The next prime is 321321200041. The reversal of 321321200023 is 320002123123.

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-321321200023 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 (321321200063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2985390 + ... + 3091147.

It is an arithmetic number, because the mean of its divisors is an integer number (80331832360).

Almost surely, 2^321321200023 is an apocalyptic number.

321321200023 is a deficient number, since it is larger than the sum of its proper divisors (6129417).

321321200023 is an equidigital number, since it uses as much as digits as its factorization.

321321200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6129416.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 321321200023 its reverse (320002123123), we get a palindrome (641323323146).

The spelling of 321321200023 in words is "three hundred twenty-one billion, three hundred twenty-one million, two hundred thousand, twenty-three".