243213440042430 has 96 divisors (see below), whose sum is σ = 742906507805280. Its totient is φ = 54425385181440.

The previous prime is 243213440042399. The next prime is 243213440042477. The reversal of 243213440042430 is 34240044312342.

243213440042430 is a `hidden beast` number, since 2 + 4 + 3 + 2 + 1 + 3 + 4 + 400 + 4 + 243 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9448838725 + ... + 9448864464.

It is an arithmetic number, because the mean of its divisors is an integer number (7738609456305).

Almost surely, 2^{243213440042430} is an apocalyptic number.

243213440042430 is an abundant number, since it is smaller than the sum of its proper divisors (499693067762850).

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

243213440042430 is a wasteful number, since it uses less digits than its factorization.

243213440042430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18897703226 (or 18897703223 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 243213440042430 its reverse (34240044312342), we get a palindrome (277453484354772).

The spelling of 243213440042430 in words is "two hundred forty-three trillion, two hundred thirteen billion, four hundred forty million, forty-two thousand, four hundred thirty".