12110101011011 has 4 divisors (see below), whose sum is σ = 12110108933472. Its totient is φ = 12110093088552.

The previous prime is 12110101010993. The next prime is 12110101011013. The reversal of 12110101011011 is 11011010101121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12110101011011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110101010983 and 12110101011001.

It is not an unprimeable number, because it can be changed into a prime (12110101011013) 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 in 3 ways as a sum of consecutive naturals, for example, 858011 + ... + 4995636.

It is an arithmetic number, because the mean of its divisors is an integer number (3027527233368).

Almost surely, 2^{12110101011011} is an apocalyptic number.

12110101011011 is a deficient number, since it is larger than the sum of its proper divisors (7922461).

12110101011011 is an equidigital number, since it uses as much as digits as its factorization.

12110101011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7922460.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 12110101011011 its reverse (11011010101121), we get a palindrome (23121111112132).

The spelling of 12110101011011 in words is "twelve trillion, one hundred ten billion, one hundred one million, eleven thousand, eleven".