243120512442 has 16 divisors (see below), whose sum is σ = 486267885792. Its totient is φ = 81035694000.

The previous prime is 243120512429. The next prime is 243120512533. The reversal of 243120512442 is 244215021342.

It is a happy number.

243120512442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000573 + ... + 1219584.

It is an arithmetic number, because the mean of its divisors is an integer number (30391742862).

Almost surely, 2^243120512442 is an apocalyptic number.

243120512442 is an abundant number, since it is smaller than the sum of its proper divisors (243147373350).

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

243120512442 is a wasteful number, since it uses less digits than its factorization.

243120512442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238413.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 243120512442 its reverse (244215021342), we get a palindrome (487335533784).

The spelling of 243120512442 in words is "two hundred forty-three billion, one hundred twenty million, five hundred twelve thousand, four hundred forty-two".