12513531200 has 42 divisors (see below), whose sum is σ = 30791111646. Its totient is φ = 5005411840.

The previous prime is 12513531197. The next prime is 12513531221. The reversal of 12513531200 is 213531521.

It is a happy number.

12513531200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 3641398336 + 8872132864 = 60344^2 + 94192^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3908879 + ... + 3912078.

Almost surely, 2^12513531200 is an apocalyptic number.

12513531200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12513531200 is an abundant number, since it is smaller than the sum of its proper divisors (18277580446).

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

12513531200 is an equidigital number, since it uses as much as digits as its factorization.

12513531200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820979 (or 7820964 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 12513531200 in words is "twelve billion, five hundred thirteen million, five hundred thirty-one thousand, two hundred".