12106638727 has 2 divisors, whose sum is σ = 12106638728. Its totient is φ = 12106638726.

The previous prime is 12106638697. The next prime is 12106638751. The reversal of 12106638727 is 72783660121.

12106638727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (72783660121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12106638727 - 2¹¹ = 12106636679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12106638527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6053319363 + 6053319364.

It is an arithmetic number, because the mean of its divisors is an integer number (6053319364).

Almost surely, 2^12106638727 is an apocalyptic number.

12106638727 is a deficient number, since it is larger than the sum of its proper divisors (1).

12106638727 is an equidigital number, since it uses as much as digits as its factorization.

12106638727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 12106638727 in words is "twelve billion, one hundred six million, six hundred thirty-eight thousand, seven hundred twenty-seven".