12144641361 has 16 divisors (see below), whose sum is σ = 16536268800. Its totient is φ = 7925870288.

The previous prime is 12144641359. The next prime is 12144641389. The reversal of 12144641361 is 16314644121.

It is a cyclic number.

It is not a de Polignac number, because 12144641361 - 2¹ = 12144641359 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12144641321) 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, 101241 + ... + 185846.

It is an arithmetic number, because the mean of its divisors is an integer number (1033516800).

Almost surely, 2^12144641361 is an apocalyptic number.

It is an amenable number.

12144641361 is a deficient number, since it is larger than the sum of its proper divisors (4391627439).

12144641361 is a wasteful number, since it uses less digits than its factorization.

12144641361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287388.

The product of its digits is 13824, while the sum is 33.

The spelling of 12144641361 in words is "twelve billion, one hundred forty-four million, six hundred forty-one thousand, three hundred sixty-one".