12043321242 has 32 divisors (see below), whose sum is σ = 24227356608. Its totient is φ = 3991042176.

The previous prime is 12043321211. The next prime is 12043321243. The reversal of 12043321242 is 24212334021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12043321243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948528 + ... + 961140.

It is an arithmetic number, because the mean of its divisors is an integer number (757104894).

Almost surely, 2^12043321242 is an apocalyptic number.

12043321242 is an abundant number, since it is smaller than the sum of its proper divisors (12184035366).

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

12043321242 is a wasteful number, since it uses less digits than its factorization.

12043321242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13534.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12043321242 its reverse (24212334021), we get a palindrome (36255655263).

The spelling of 12043321242 in words is "twelve billion, forty-three million, three hundred twenty-one thousand, two hundred forty-two".