12027278111 has 2 divisors, whose sum is σ = 12027278112. Its totient is φ = 12027278110.

The previous prime is 12027278069. The next prime is 12027278117. The reversal of 12027278111 is 11187272021.

It is a strong prime.

It is an emirp because it is prime and its reverse (11187272021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12027278111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12027278117) 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, 6013639055 + 6013639056.

It is an arithmetic number, because the mean of its divisors is an integer number (6013639056).

Almost surely, 2^12027278111 is an apocalyptic number.

12027278111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12027278111 is an equidigital number, since it uses as much as digits as its factorization.

12027278111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 32.

The spelling of 12027278111 in words is "twelve billion, twenty-seven million, two hundred seventy-eight thousand, one hundred eleven".