213312443204323 has 4 divisors (see below), whose sum is σ = 213312489075288. Its totient is φ = 213312397333360.

The previous prime is 213312443204293. The next prime is 213312443204387. The reversal of 213312443204323 is 323402344213312.

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

It is a cyclic number.

It is not a de Polignac number, because 213312443204323 - 2¹⁷ = 213312443073251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213312443204923) 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, 15058261 + ... + 25561222.

It is an arithmetic number, because the mean of its divisors is an integer number (53328122268822).

Almost surely, 2^{213312443204323} is an apocalyptic number.

213312443204323 is a deficient number, since it is larger than the sum of its proper divisors (45870965).

213312443204323 is an equidigital number, since it uses as much as digits as its factorization.

213312443204323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45870964.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 213312443204323 its reverse (323402344213312), we get a palindrome (536714787417635).

The spelling of 213312443204323 in words is "two hundred thirteen trillion, three hundred twelve billion, four hundred forty-three million, two hundred four thousand, three hundred twenty-three".