12981004127 has 16 divisors (see below), whose sum is σ = 15998498880. Its totient is φ = 10256620032.

The previous prime is 12981004123. The next prime is 12981004189. The reversal of 12981004127 is 72140018921.

It is a cyclic number.

It is not a de Polignac number, because 12981004127 - 2² = 12981004123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12981004123) 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, 30602 + ... + 164007.

It is an arithmetic number, because the mean of its divisors is an integer number (999906180).

Almost surely, 2^12981004127 is an apocalyptic number.

12981004127 is a deficient number, since it is larger than the sum of its proper divisors (3017494753).

12981004127 is a wasteful number, since it uses less digits than its factorization.

12981004127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195362.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 12981004127 in words is "twelve billion, nine hundred eighty-one million, four thousand, one hundred twenty-seven".