243243005202 has 12 divisors (see below), whose sum is σ = 527026511310. Its totient is φ = 81081001728.

The previous prime is 243243005191. The next prime is 243243005231. The reversal of 243243005202 is 202500342342.

It is a happy number.

243243005202 is a `hidden beast` number, since 24 + 3 + 2 + 430 + 0 + 5 + 202 = 666.

It can be written as a sum of positive squares in only one way, i.e., 157013270001 + 86229735201 = 396249^2 + 293649^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6756750127 + ... + 6756750162.

Almost surely, 2^243243005202 is an apocalyptic number.

243243005202 is an abundant number, since it is smaller than the sum of its proper divisors (283783506108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243243005202 is a wasteful number, since it uses less digits than its factorization.

243243005202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13513500297 (or 13513500294 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 243243005202 its reverse (202500342342), we get a palindrome (445743347544).

The spelling of 243243005202 in words is "two hundred forty-three billion, two hundred forty-three million, five thousand, two hundred two".