12000208911 has 16 divisors (see below), whose sum is σ = 16078656000. Its totient is φ = 7960988448.

The previous prime is 12000208901. The next prime is 12000208937. The reversal of 12000208911 is 11980200021.

It is a de Polignac number, because none of the positive numbers 2^k-12000208911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000208901) 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, 1815190 + ... + 1821788.

It is an arithmetic number, because the mean of its divisors is an integer number (1004916000).

Almost surely, 2^12000208911 is an apocalyptic number.

12000208911 is a deficient number, since it is larger than the sum of its proper divisors (4078447089).

12000208911 is a wasteful number, since it uses less digits than its factorization.

12000208911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9478.

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 12000208911 its reverse (11980200021), we get a palindrome (23980408932).

The spelling of 12000208911 in words is "twelve billion, two hundred eight thousand, nine hundred eleven".