12601643043126 has 32 divisors (see below), whose sum is σ = 25452858977280. Its totient is φ = 4159147943936.

The previous prime is 12601643043097. The next prime is 12601643043127. The reversal of 12601643043126 is 62134034610621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12601643043127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24210366 + ... + 24725393.

It is an arithmetic number, because the mean of its divisors is an integer number (795401843040).

Almost surely, 2^{12601643043126} is an apocalyptic number.

12601643043126 is an abundant number, since it is smaller than the sum of its proper divisors (12851215934154).

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

12601643043126 is a wasteful number, since it uses less digits than its factorization.

12601643043126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48936188.

The product of its (nonzero) digits is 124416, while the sum is 39.

Adding to 12601643043126 its reverse (62134034610621), we get a palindrome (74735677653747).

The spelling of 12601643043126 in words is "twelve trillion, six hundred one billion, six hundred forty-three million, forty-three thousand, one hundred twenty-six".