12144131560 has 128 divisors (see below), whose sum is σ = 32934470400. Its totient is φ = 3975516160.

The previous prime is 12144131539. The next prime is 12144131569. The reversal of 12144131560 is 6513144121.

It is not an unprimeable number, because it can be changed into a prime (12144131569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136746 + ... + 207334.

It is an arithmetic number, because the mean of its divisors is an integer number (257300550).

Almost surely, 2^12144131560 is an apocalyptic number.

12144131560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12144131560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16467235200).

12144131560 is an abundant number, since it is smaller than the sum of its proper divisors (20790338840).

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

12144131560 is a wasteful number, since it uses less digits than its factorization.

12144131560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70651 (or 70647 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 12144131560 its reverse (6513144121), we get a palindrome (18657275681).

The spelling of 12144131560 in words is "twelve billion, one hundred forty-four million, one hundred thirty-one thousand, five hundred sixty".