213324320023 has 4 divisors (see below), whose sum is σ = 214094444200. Its totient is φ = 212554195848.

The previous prime is 213324319981. The next prime is 213324320039. The reversal of 213324320023 is 320023423312.

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-213324320023 is a prime.

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 213324320023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213324320423) 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, 385061673 + ... + 385062226.

It is an arithmetic number, because the mean of its divisors is an integer number (53523611050).

Almost surely, 2^213324320023 is an apocalyptic number.

213324320023 is a deficient number, since it is larger than the sum of its proper divisors (770124177).

213324320023 is an equidigital number, since it uses as much as digits as its factorization.

213324320023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770124176.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 213324320023 its reverse (320023423312), we get a palindrome (533347743335).

The spelling of 213324320023 in words is "two hundred thirteen billion, three hundred twenty-four million, three hundred twenty thousand, twenty-three".