213232100342243 has 4 divisors (see below), whose sum is σ = 213843080572800. Its totient is φ = 212621120111688.

The previous prime is 213232100342227. The next prime is 213232100342267. The reversal of 213232100342243 is 342243001232312.

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 213232100342243 - 2⁴ = 213232100342227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213232100342213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305490114755 + ... + 305490115452.

It is an arithmetic number, because the mean of its divisors is an integer number (53460770143200).

Almost surely, 2^{213232100342243} is an apocalyptic number.

213232100342243 is a deficient number, since it is larger than the sum of its proper divisors (610980230557).

213232100342243 is an equidigital number, since it uses as much as digits as its factorization.

213232100342243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610980230556.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 213232100342243 its reverse (342243001232312), we get a palindrome (555475101574555).

The spelling of 213232100342243 in words is "two hundred thirteen trillion, two hundred thirty-two billion, one hundred million, three hundred forty-two thousand, two hundred forty-three".