12111101110111 has 2 divisors, whose sum is σ = 12111101110112. Its totient is φ = 12111101110110.

The previous prime is 12111101110099. The next prime is 12111101110117. The reversal of 12111101110111 is 11101110111121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12111101110111 - 2⁹ = 12111101109599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12111101110091 and 12111101110100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111101110117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055550555055 + 6055550555056.

It is an arithmetic number, because the mean of its divisors is an integer number (6055550555056).

Almost surely, 2^{12111101110111} is an apocalyptic number.

12111101110111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111101110111 is an equidigital number, since it uses as much as digits as its factorization.

12111101110111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 12111101110111 its reverse (11101110111121), we get a palindrome (23212211221232).

It can be divided in two parts, 121 and 11101110111, that multiplied together give a palindrome (1343234323431).

The spelling of 12111101110111 in words is "twelve trillion, one hundred eleven billion, one hundred one million, one hundred ten thousand, one hundred eleven".