243111042 has 24 divisors (see below), whose sum is σ = 554464560. Its totient is φ = 76771800.

The previous prime is 243111019. The next prime is 243111073. The reversal of 243111042 is 240111342.

243111042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355084 + ... + 355767.

It is an arithmetic number, because the mean of its divisors is an integer number (23102690).

Almost surely, 2^243111042 is an apocalyptic number.

243111042 is an abundant number, since it is smaller than the sum of its proper divisors (311353518).

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

243111042 is a wasteful number, since it uses less digits than its factorization.

243111042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710878 (or 710875 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 243111042 is about 15592.0185351352. The cubic root of 243111042 is about 624.1201845675.

Adding to 243111042 its reverse (240111342), we get a palindrome (483222384).

The spelling of 243111042 in words is "two hundred forty-three million, one hundred eleven thousand, forty-two".