213220430323 has 4 divisors (see below), whose sum is σ = 213914959720. Its totient is φ = 212525900928.

The previous prime is 213220430281. The next prime is 213220430377. The reversal of 213220430323 is 323034022312.

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-213220430323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213220430383) 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, 347264238 + ... + 347264851.

It is an arithmetic number, because the mean of its divisors is an integer number (53478739930).

Almost surely, 2^213220430323 is an apocalyptic number.

213220430323 is a deficient number, since it is larger than the sum of its proper divisors (694529397).

213220430323 is an equidigital number, since it uses as much as digits as its factorization.

213220430323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694529396.

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

Adding to 213220430323 its reverse (323034022312), we get a palindrome (536254452635).

The spelling of 213220430323 in words is "two hundred thirteen billion, two hundred twenty million, four hundred thirty thousand, three hundred twenty-three".