12103140144 has 120 divisors (see below), whose sum is σ = 33097256640. Its totient is φ = 3810635136.

The previous prime is 12103140143. The next prime is 12103140149. The reversal of 12103140144 is 44104130121.

It is a self number, because there is not a number n which added to its sum of digits gives 12103140144.

It is not an unprimeable number, because it can be changed into a prime (12103140143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7259599 + ... + 7261265.

It is an arithmetic number, because the mean of its divisors is an integer number (275810472).

Almost surely, 2^12103140144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12103140144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16548628320).

12103140144 is an abundant number, since it is smaller than the sum of its proper divisors (20994116496).

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

12103140144 is a wasteful number, since it uses less digits than its factorization.

12103140144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12103140144 its reverse (44104130121), we get a palindrome (56207270265).

The spelling of 12103140144 in words is "twelve billion, one hundred three million, one hundred forty thousand, one hundred forty-four".