12156110671 has 2 divisors, whose sum is σ = 12156110672. Its totient is φ = 12156110670.

The previous prime is 12156110669. The next prime is 12156110741. The reversal of 12156110671 is 17601165121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12156110671 - 2¹ = 12156110669 is a prime.

Together with 12156110669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12156110471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6078055335 + 6078055336.

It is an arithmetic number, because the mean of its divisors is an integer number (6078055336).

Almost surely, 2^12156110671 is an apocalyptic number.

12156110671 is a deficient number, since it is larger than the sum of its proper divisors (1).

12156110671 is an equidigital number, since it uses as much as digits as its factorization.

12156110671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 31.

Adding to 12156110671 its reverse (17601165121), we get a palindrome (29757275792).

The spelling of 12156110671 in words is "twelve billion, one hundred fifty-six million, one hundred ten thousand, six hundred seventy-one".