243443412213 has 4 divisors (see below), whose sum is σ = 324591216288. Its totient is φ = 162295608140.

The previous prime is 243443412169. The next prime is 243443412227. The reversal of 243443412213 is 312214344342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243443412213 - 2¹⁴ = 243443395829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243443412263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40573902033 + ... + 40573902038.

It is an arithmetic number, because the mean of its divisors is an integer number (81147804072).

Almost surely, 2^243443412213 is an apocalyptic number.

It is an amenable number.

243443412213 is a deficient number, since it is larger than the sum of its proper divisors (81147804075).

243443412213 is an equidigital number, since it uses as much as digits as its factorization.

243443412213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81147804074.

The product of its digits is 55296, while the sum is 33.

Adding to 243443412213 its reverse (312214344342), we get a palindrome (555657756555).

The spelling of 243443412213 in words is "two hundred forty-three billion, four hundred forty-three million, four hundred twelve thousand, two hundred thirteen".