201111100111 has 8 divisors (see below), whose sum is σ = 203111913744. Its totient is φ = 199110475200.

The previous prime is 201111100081. The next prime is 201111100129. The reversal of 201111100111 is 111001111102.

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 201111100111 - 2¹⁷ = 201110969039 is a prime.

It is a super-3 number, since 3×201111100111³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111100181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197115 + ... + 3259411.

It is an arithmetic number, because the mean of its divisors is an integer number (25388989218).

Almost surely, 2^201111100111 is an apocalyptic number.

201111100111 is a deficient number, since it is larger than the sum of its proper divisors (2000813633).

201111100111 is a wasteful number, since it uses less digits than its factorization.

201111100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94361.

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

Adding to 201111100111 its reverse (111001111102), we get a palindrome (312112211213).

The spelling of 201111100111 in words is "two hundred one billion, one hundred eleven million, one hundred thousand, one hundred eleven".