12523510132 has 48 divisors (see below), whose sum is σ = 25720934400. Its totient is φ = 5224407552.

The previous prime is 12523510127. The next prime is 12523510159. The reversal of 12523510132 is 23101532521.

It is a junction number, because it is equal to n+sod(n) for n = 12523510097 and 12523510106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155244 + ... + 221692.

It is an arithmetic number, because the mean of its divisors is an integer number (535852800).

Almost surely, 2^12523510132 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 12523510132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12860467200).

12523510132 is an abundant number, since it is smaller than the sum of its proper divisors (13197424268).

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

12523510132 is a wasteful number, since it uses less digits than its factorization.

12523510132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66640 (or 66638 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 12523510132 in words is "twelve billion, five hundred twenty-three million, five hundred ten thousand, one hundred thirty-two".