243243110213 has 16 divisors (see below), whose sum is σ = 245256960000. Its totient is φ = 241238677680.

The previous prime is 243243110179. The next prime is 243243110219. The reversal of 243243110213 is 312011342342.

243243110213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 243243110213 - 2²⁴ = 243226332997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243243110219) 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 15 ways as a sum of consecutive naturals, for example, 105253328 + ... + 105255638.

It is an arithmetic number, because the mean of its divisors is an integer number (15328560000).

Almost surely, 2^243243110213 is an apocalyptic number.

It is an amenable number.

243243110213 is a deficient number, since it is larger than the sum of its proper divisors (2013849787).

243243110213 is a wasteful number, since it uses less digits than its factorization.

243243110213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 243243110213 its reverse (312011342342), we get a palindrome (555254452555).

The spelling of 243243110213 in words is "two hundred forty-three billion, two hundred forty-three million, one hundred ten thousand, two hundred thirteen".