12560613421 has 16 divisors (see below), whose sum is σ = 13883270400. Its totient is φ = 11303235328.

The previous prime is 12560613407. The next prime is 12560613493. The reversal of 12560613421 is 12431606521.

It is a happy number.

12560613421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12560613421 - 2⁷ = 12560613293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12560613721) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1320360 + ... + 1329838.

It is an arithmetic number, because the mean of its divisors is an integer number (867704400).

Almost surely, 2^12560613421 is an apocalyptic number.

It is an amenable number.

12560613421 is a deficient number, since it is larger than the sum of its proper divisors (1322656979).

12560613421 is a wasteful number, since it uses less digits than its factorization.

12560613421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12908.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 12560613421 in words is "twelve billion, five hundred sixty million, six hundred thirteen thousand, four hundred twenty-one".