12520200240 has 160 divisors (see below), whose sum is σ = 43183664640. Its totient is φ = 3334189824.

The previous prime is 12520200227. The next prime is 12520200241. The reversal of 12520200240 is 4200202521.

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

It is not an unprimeable number, because it can be changed into a prime (12520200241) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1774159 + ... + 1781201.

It is an arithmetic number, because the mean of its divisors is an integer number (269897904).

Almost surely, 2^12520200240 is an apocalyptic number.

12520200240 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 12520200240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21591832320).

12520200240 is an abundant number, since it is smaller than the sum of its proper divisors (30663464400).

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

12520200240 is a wasteful number, since it uses less digits than its factorization.

12520200240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888 (or 7876 counting only the distinct ones).

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

Adding to 12520200240 its reverse (4200202521), we get a palindrome (16720402761).

The spelling of 12520200240 in words is "twelve billion, five hundred twenty million, two hundred thousand, two hundred forty".