12530442320 has 160 divisors (see below), whose sum is σ = 33792194304. Its totient is φ = 4275814400.

The previous prime is 12530442317. The next prime is 12530442349. The reversal of 12530442320 is 2324403521.

12530442320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12530442320.

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 31 ways as a sum of consecutive naturals, for example, 1066880 + ... + 1078560.

Almost surely, 2^12530442320 is an apocalyptic number.

12530442320 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 12530442320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16896097152).

12530442320 is an abundant number, since it is smaller than the sum of its proper divisors (21261751984).

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

12530442320 is a wasteful number, since it uses less digits than its factorization.

12530442320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11781 (or 11775 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 12530442320 its reverse (2324403521), we get a palindrome (14854845841).

The spelling of 12530442320 in words is "twelve billion, five hundred thirty million, four hundred forty-two thousand, three hundred twenty".