243042020204 has 6 divisors (see below), whose sum is σ = 425323535364. Its totient is φ = 121521010100.

The previous prime is 243042020153. The next prime is 243042020209. The reversal of 243042020204 is 402020240342.

It is a self number, because there is not a number n which added to its sum of digits gives 243042020204.

It is not an unprimeable number, because it can be changed into a prime (243042020209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30380252522 + ... + 30380252529.

It is an arithmetic number, because the mean of its divisors is an integer number (70887255894).

Almost surely, 2^243042020204 is an apocalyptic number.

It is an amenable number.

243042020204 is a deficient number, since it is larger than the sum of its proper divisors (182281515160).

243042020204 is a wasteful number, since it uses less digits than its factorization.

243042020204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60760505055 (or 60760505053 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 243042020204 its reverse (402020240342), we get a palindrome (645062260546).

The spelling of 243042020204 in words is "two hundred forty-three billion, forty-two million, twenty thousand, two hundred four".