12144431242 has 8 divisors (see below), whose sum is σ = 18355705632. Its totient is φ = 6025862700.

The previous prime is 12144431237. The next prime is 12144431249. The reversal of 12144431242 is 24213444121.

12144431242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12144431242.

It is not an unprimeable number, because it can be changed into a prime (12144431249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23176134 + ... + 23176657.

It is an arithmetic number, because the mean of its divisors is an integer number (2294463204).

Almost surely, 2^12144431242 is an apocalyptic number.

12144431242 is a deficient number, since it is larger than the sum of its proper divisors (6211274390).

12144431242 is a wasteful number, since it uses less digits than its factorization.

12144431242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46352924.

The product of its digits is 6144, while the sum is 28.

Adding to 12144431242 its reverse (24213444121), we get a palindrome (36357875363).

The spelling of 12144431242 in words is "twelve billion, one hundred forty-four million, four hundred thirty-one thousand, two hundred forty-two".