12144043331 has 12 divisors (see below), whose sum is σ = 14272386408. Its totient is φ = 10301864832.

The previous prime is 12144043231. The next prime is 12144043333. The reversal of 12144043331 is 13334044121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12144043331 is a prime.

It is a super-2 number, since 2×12144043331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12144043331.

It is not an unprimeable number, because it can be changed into a prime (12144043333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1272761 + ... + 1282266.

It is an arithmetic number, because the mean of its divisors is an integer number (1189365534).

Almost surely, 2^12144043331 is an apocalyptic number.

12144043331 is a deficient number, since it is larger than the sum of its proper divisors (2128343077).

12144043331 is an equidigital number, since it uses as much as digits as its factorization.

12144043331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555138 (or 2555131 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12144043331 its reverse (13334044121), we get a palindrome (25478087452).

The spelling of 12144043331 in words is "twelve billion, one hundred forty-four million, forty-three thousand, three hundred thirty-one".