201111113 has 8 divisors (see below), whose sum is σ = 230008128. Its totient is φ = 172255824.

The previous prime is 201111107. The next prime is 201111161. The reversal of 201111113 is 311111102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201111113 - 2⁶ = 201111049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201111094 and 201111103.

It is not an unprimeable number, because it can be changed into a prime (201111013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695 + ... + 20067.

It is an arithmetic number, because the mean of its divisors is an integer number (28751016).

Almost surely, 2^201111113 is an apocalyptic number.

It is an amenable number.

201111113 is a deficient number, since it is larger than the sum of its proper divisors (28897015).

201111113 is a wasteful number, since it uses less digits than its factorization.

201111113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20863.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 201111113 is about 14181.3649907193. The cubic root of 201111113 is about 585.8845196774.

Subtracting from 201111113 its sum of digits (11), we obtain a palindrome (201111102).

Adding to 201111113 its reverse (311111102), we get a palindrome (512222215).

The spelling of 201111113 in words is "two hundred one million, one hundred eleven thousand, one hundred thirteen".