12008128127 has 4 divisors (see below), whose sum is σ = 12019753680. Its totient is φ = 11996502576.

The previous prime is 12008128081. The next prime is 12008128133. The reversal of 12008128127 is 72182180021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12008128127 is a prime.

It is a super-2 number, since 2×12008128127² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12008128093 and 12008128102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12008128927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5811227 + ... + 5813292.

It is an arithmetic number, because the mean of its divisors is an integer number (3004938420).

Almost surely, 2^12008128127 is an apocalyptic number.

12008128127 is a deficient number, since it is larger than the sum of its proper divisors (11625553).

12008128127 is a wasteful number, since it uses less digits than its factorization.

12008128127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11625552.

The product of its (nonzero) digits is 3584, while the sum is 32.

The spelling of 12008128127 in words is "twelve billion, eight million, one hundred twenty-eight thousand, one hundred twenty-seven".