12515324100 has 144 divisors (see below), whose sum is σ = 37833203520. Its totient is φ = 3190208000.

The previous prime is 12515324069. The next prime is 12515324119. The reversal of 12515324100 is 142351521.

It is a happy number.

12515324100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47 ways as a sum of consecutive naturals, for example, 871579 + ... + 885821.

It is an arithmetic number, because the mean of its divisors is an integer number (262730580).

Almost surely, 2^12515324100 is an apocalyptic number.

12515324100 is a gapful number since it is divisible by the number (10) 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 12515324100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18916601760).

12515324100 is an abundant number, since it is smaller than the sum of its proper divisors (25317879420).

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

12515324100 is a wasteful number, since it uses less digits than its factorization.

12515324100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14390 (or 14383 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 12515324100 its reverse (142351521), we get a palindrome (12657675621).

The spelling of 12515324100 in words is "twelve billion, five hundred fifteen million, three hundred twenty-four thousand, one hundred".