2011231100111 has 4 divisors (see below), whose sum is σ = 2015076666792. Its totient is φ = 2007385533432.

The previous prime is 2011231100071. The next prime is 2011231100129. The reversal of 2011231100111 is 1110011321102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011231100111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011231106111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1922782556 + ... + 1922783601.

It is an arithmetic number, because the mean of its divisors is an integer number (503769166698).

Almost surely, 2^{2011231100111} is an apocalyptic number.

2011231100111 is a deficient number, since it is larger than the sum of its proper divisors (3845566681).

2011231100111 is an equidigital number, since it uses as much as digits as its factorization.

2011231100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845566680.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 2011231100111 its reverse (1110011321102), we get a palindrome (3121242421213).

The spelling of 2011231100111 in words is "two trillion, eleven billion, two hundred thirty-one million, one hundred thousand, one hundred eleven".