12513126240 has 120 divisors (see below), whose sum is σ = 44160953760. Its totient is φ = 3336830208.

The previous prime is 12513126221. The next prime is 12513126251. The reversal of 12513126240 is 4262131521.

12513126240 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 31 + 2 + 624 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 469800 + ... + 495719.

It is an arithmetic number, because the mean of its divisors is an integer number (368007948).

Almost surely, 2^12513126240 is an apocalyptic number.

12513126240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12513126240 is an abundant number, since it is smaller than the sum of its proper divisors (31647827520).

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

12513126240 is an equidigital number, since it uses as much as digits as its factorization.

12513126240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965546 (or 965529 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 12513126240 its reverse (4262131521), we get a palindrome (16775257761).

The spelling of 12513126240 in words is "twelve billion, five hundred thirteen million, one hundred twenty-six thousand, two hundred forty".