12011110111 has 16 divisors (see below), whose sum is σ = 16126806528. Its totient is φ = 8639359200.

The previous prime is 12011110103. The next prime is 12011110121. The reversal of 12011110111 is 11101111021.

It is a cyclic number.

It is not a de Polignac number, because 12011110111 - 2³ = 12011110103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011110121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5998555 + ... + 6000556.

It is an arithmetic number, because the mean of its divisors is an integer number (1007925408).

Almost surely, 2^12011110111 is an apocalyptic number.

12011110111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12011110111 is a deficient number, since it is larger than the sum of its proper divisors (4115696417).

12011110111 is a wasteful number, since it uses less digits than its factorization.

12011110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11999142.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 12011110111 its reverse (11101111021), we get a palindrome (23112221132).

The spelling of 12011110111 in words is "twelve billion, eleven million, one hundred ten thousand, one hundred eleven".