201111102012011 has 4 divisors (see below), whose sum is σ = 201423872000232. Its totient is φ = 200798332023792.

The previous prime is 201111102011977. The next prime is 201111102012013. The reversal of 201111102012011 is 110210201111102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201111102012011 - 2⁶ = 201111102011947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201111102012013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156384993146 + ... + 156384994431.

It is an arithmetic number, because the mean of its divisors is an integer number (50355968000058).

Almost surely, 2^{201111102012011} is an apocalyptic number.

201111102012011 is a deficient number, since it is larger than the sum of its proper divisors (312769988221).

201111102012011 is an equidigital number, since it uses as much as digits as its factorization.

201111102012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312769988220.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201111102012011 its reverse (110210201111102), we get a palindrome (311321303123113).

Subtracting from 201111102012011 its reverse (110210201111102), we obtain a palindrome (90900900900909).

The spelling of 201111102012011 in words is "two hundred one trillion, one hundred eleven billion, one hundred two million, twelve thousand, eleven".