12520044000 has 144 divisors (see below), whose sum is σ = 44433763920. Its totient is φ = 3338668800.

The previous prime is 12520043993. The next prime is 12520044011. The reversal of 12520044000 is 44002521.

12520044000 is a `hidden beast` number, since 1 + 25 + 200 + 440 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137890 + ... + 209889.

It is an arithmetic number, because the mean of its divisors is an integer number (308567805).

Almost surely, 2^12520044000 is an apocalyptic number.

12520044000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12520044000 is an abundant number, since it is smaller than the sum of its proper divisors (31913719920).

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

12520044000 is a wasteful number, since it uses less digits than its factorization.

12520044000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347810 (or 347789 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 12520044000 its reverse (44002521), we get a palindrome (12564046521).

The spelling of 12520044000 in words is "twelve billion, five hundred twenty million, forty-four thousand".