243043030242 has 48 divisors (see below), whose sum is σ = 538933082688. Its totient is φ = 79116559200.

The previous prime is 243043030213. The next prime is 243043030249. The reversal of 243043030242 is 242030340342.

243043030242 is a `hidden beast` number, since 24 + 304 + 30 + 302 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (243043030249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5046508 + ... + 5094440.

It is an arithmetic number, because the mean of its divisors is an integer number (11227772556).

Almost surely, 2^243043030242 is an apocalyptic number.

243043030242 is an abundant number, since it is smaller than the sum of its proper divisors (295890052446).

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

243043030242 is a wasteful number, since it uses less digits than its factorization.

243043030242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54535 (or 54532 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 243043030242 its reverse (242030340342), we get a palindrome (485073370584).

The spelling of 243043030242 in words is "two hundred forty-three billion, forty-three million, thirty thousand, two hundred forty-two".