12043530442 has 16 divisors (see below), whose sum is σ = 18653356800. Its totient is φ = 5825855520.

The previous prime is 12043530431. The next prime is 12043530467. The reversal of 12043530442 is 24403534021.

It is a happy number.

It is a super-3 number, since 3×12043530442³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12043530442.

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, 207909 + ... + 259447.

It is an arithmetic number, because the mean of its divisors is an integer number (1165834800).

Almost surely, 2^12043530442 is an apocalyptic number.

12043530442 is a deficient number, since it is larger than the sum of its proper divisors (6609826358).

12043530442 is a wasteful number, since it uses less digits than its factorization.

12043530442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55341.

The product of its (nonzero) digits is 11520, while the sum is 28.

The spelling of 12043530442 in words is "twelve billion, forty-three million, five hundred thirty thousand, four hundred forty-two".