201010111111 has 4 divisors (see below), whose sum is σ = 212834235312. Its totient is φ = 189185986912.

The previous prime is 201010111097. The next prime is 201010111129. The reversal of 201010111111 is 111111010102.

201010111111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201010111111 - 2⁵ = 201010111079 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 (201010112111) 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, 5912062075 + ... + 5912062108.

It is an arithmetic number, because the mean of its divisors is an integer number (53208558828).

Almost surely, 2^201010111111 is an apocalyptic number.

201010111111 is a deficient number, since it is larger than the sum of its proper divisors (11824124201).

201010111111 is a wasteful number, since it uses less digits than its factorization.

201010111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11824124200.

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

Adding to 201010111111 its reverse (111111010102), we get a palindrome (312121121213).

The spelling of 201010111111 in words is "two hundred one billion, ten million, one hundred eleven thousand, one hundred eleven".