12043042013242 has 16 divisors (see below), whose sum is σ = 18491548787712. Its totient is φ = 5879296654560.

The previous prime is 12043042013221. The next prime is 12043042013243. The reversal of 12043042013242 is 24231024034021.

It is a self number, because there is not a number n which added to its sum of digits gives 12043042013242.

It is not an unprimeable number, because it can be changed into a prime (12043042013243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25826859 + ... + 26289022.

It is an arithmetic number, because the mean of its divisors is an integer number (1155721799232).

Almost surely, 2^{12043042013242} is an apocalyptic number.

12043042013242 is a deficient number, since it is larger than the sum of its proper divisors (6448506774470).

12043042013242 is a wasteful number, since it uses less digits than its factorization.

12043042013242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52118613.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12043042013242 its reverse (24231024034021), we get a palindrome (36274066047263).

The spelling of 12043042013242 in words is "twelve trillion, forty-three billion, forty-two million, thirteen thousand, two hundred forty-two".