12011101321111 has 2 divisors, whose sum is σ = 12011101321112. Its totient is φ = 12011101321110.

The previous prime is 12011101321049. The next prime is 12011101321211. The reversal of 12011101321111 is 11112310111021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12011101321111 - 2⁹ = 12011101320599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011101321211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005550660555 + 6005550660556.

It is an arithmetic number, because the mean of its divisors is an integer number (6005550660556).

Almost surely, 2^{12011101321111} is an apocalyptic number.

12011101321111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011101321111 is an equidigital number, since it uses as much as digits as its factorization.

12011101321111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 12011101321111 its reverse (11112310111021), we get a palindrome (23123411432132).

The spelling of 12011101321111 in words is "twelve trillion, eleven billion, one hundred one million, three hundred twenty-one thousand, one hundred eleven".