12445042111 has 2 divisors, whose sum is σ = 12445042112. Its totient is φ = 12445042110.

The previous prime is 12445042109. The next prime is 12445042153. The reversal of 12445042111 is 11124054421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12445042111 - 2¹ = 12445042109 is a prime.

Together with 12445042109, 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 (12445042711) 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, 6222521055 + 6222521056.

It is an arithmetic number, because the mean of its divisors is an integer number (6222521056).

Almost surely, 2^12445042111 is an apocalyptic number.

12445042111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445042111 is an equidigital number, since it uses as much as digits as its factorization.

12445042111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 12445042111 its reverse (11124054421), we get a palindrome (23569096532).

The spelling of 12445042111 in words is "twelve billion, four hundred forty-five million, forty-two thousand, one hundred eleven".