12105816911 has 8 divisors (see below), whose sum is σ = 12217743360. Its totient is φ = 11994150168.

The previous prime is 12105816887. The next prime is 12105816929. The reversal of 12105816911 is 11961850121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12105816911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12105816011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29360 + ... + 158346.

It is an arithmetic number, because the mean of its divisors is an integer number (1527217920).

Almost surely, 2^12105816911 is an apocalyptic number.

12105816911 is a deficient number, since it is larger than the sum of its proper divisors (111926449).

12105816911 is a wasteful number, since it uses less digits than its factorization.

12105816911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129853.

The product of its (nonzero) digits is 4320, while the sum is 35.

The spelling of 12105816911 in words is "twelve billion, one hundred five million, eight hundred sixteen thousand, nine hundred eleven".