12500310144 has 128 divisors (see below), whose sum is σ = 38168138880. Its totient is φ = 3550740480.

The previous prime is 12500310143. The next prime is 12500310157. The reversal of 12500310144 is 44101300521.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12500310144.

It is not an unprimeable number, because it can be changed into a prime (12500310143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451584 + ... + 478464.

It is an arithmetic number, because the mean of its divisors is an integer number (298188585).

Almost surely, 2^12500310144 is an apocalyptic number.

12500310144 is a gapful number since it is divisible by the number (14) 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 12500310144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19084069440).

12500310144 is an abundant number, since it is smaller than the sum of its proper divisors (25667828736).

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

12500310144 is a wasteful number, since it uses less digits than its factorization.

12500310144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27078 (or 27066 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 12500310144 its reverse (44101300521), we get a palindrome (56601610665).

The spelling of 12500310144 in words is "twelve billion, five hundred million, three hundred ten thousand, one hundred forty-four".