243124022213 has 4 divisors (see below), whose sum is σ = 246548304288. Its totient is φ = 239699740140.

The previous prime is 243124022209. The next prime is 243124022231. The reversal of 243124022213 is 312220421342.

243124022213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 243124022213 - 2² = 243124022209 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243124022263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1712140931 + ... + 1712141072.

It is an arithmetic number, because the mean of its divisors is an integer number (61637076072).

Almost surely, 2^243124022213 is an apocalyptic number.

It is an amenable number.

243124022213 is a deficient number, since it is larger than the sum of its proper divisors (3424282075).

243124022213 is an equidigital number, since it uses as much as digits as its factorization.

243124022213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424282074.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 243124022213 its reverse (312220421342), we get a palindrome (555344443555).

The spelling of 243124022213 in words is "two hundred forty-three billion, one hundred twenty-four million, twenty-two thousand, two hundred thirteen".