12144344140 has 24 divisors (see below), whose sum is σ = 25505529840. Its totient is φ = 4857279168.

The previous prime is 12144344081. The next prime is 12144344141. The reversal of 12144344140 is 4144344121.

It is a junction number, because it is equal to n+sod(n) for n = 12144344099 and 12144344108.

It is not an unprimeable number, because it can be changed into a prime (12144344141) 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, 258939 + ... + 302221.

It is an arithmetic number, because the mean of its divisors is an integer number (1062730410).

Almost surely, 2^12144344140 is an apocalyptic number.

12144344140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12144344140 is an abundant number, since it is smaller than the sum of its proper divisors (13361185700).

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

12144344140 is a wasteful number, since it uses less digits than its factorization.

12144344140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57321 (or 57319 counting only the distinct ones).

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

Adding to 12144344140 its reverse (4144344121), we get a palindrome (16288688261).

The spelling of 12144344140 in words is "twelve billion, one hundred forty-four million, three hundred forty-four thousand, one hundred forty".