12520235104 has 96 divisors (see below), whose sum is σ = 27748030464. Its totient is φ = 5517642240.

The previous prime is 12520235093. The next prime is 12520235113. The reversal of 12520235104 is 40153202521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10170169 + ... + 10171399.

It is an arithmetic number, because the mean of its divisors is an integer number (289041984).

Almost surely, 2^12520235104 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 12520235104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13874015232).

12520235104 is an abundant number, since it is smaller than the sum of its proper divisors (15227795360).

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

12520235104 is a wasteful number, since it uses less digits than its factorization.

12520235104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340 (or 2332 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 12520235104 its reverse (40153202521), we get a palindrome (52673437625).

The spelling of 12520235104 in words is "twelve billion, five hundred twenty million, two hundred thirty-five thousand, one hundred four".