12011110111011 has 32 divisors (see below), whose sum is σ = 18565175628288. Its totient is φ = 6826523235840.

The previous prime is 12011110110983. The next prime is 12011110111061. The reversal of 12011110111011 is 11011101111021.

It is not a de Polignac number, because 12011110111011 - 2¹⁰ = 12011110109987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011110111061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38491135 + ... + 38801928.

It is an arithmetic number, because the mean of its divisors is an integer number (580161738384).

Almost surely, 2^{12011110111011} is an apocalyptic number.

12011110111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12011110111011 is a deficient number, since it is larger than the sum of its proper divisors (6554065517277).

12011110111011 is a wasteful number, since it uses less digits than its factorization.

12011110111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77293371.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 12011110111011 its reverse (11011101111021), we get a palindrome (23022211222032).

It can be divided in two parts, 12011110 and 111011, that added together give a palindrome (12122121).

The spelling of 12011110111011 in words is "twelve trillion, eleven billion, one hundred ten million, one hundred eleven thousand, eleven".