201120110111 has 4 divisors (see below), whose sum is σ = 201175321032. Its totient is φ = 201064899192.

The previous prime is 201120110101. The next prime is 201120110117. The reversal of 201120110111 is 111011021102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111011021102 = 2 ⋅55505510551.

It is a cyclic number.

It is not a de Polignac number, because 201120110111 - 2¹⁸ = 201119847967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201120110092 and 201120110101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120110117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27599996 + ... + 27607281.

It is an arithmetic number, because the mean of its divisors is an integer number (50293830258).

Almost surely, 2^201120110111 is an apocalyptic number.

201120110111 is a deficient number, since it is larger than the sum of its proper divisors (55210921).

201120110111 is an equidigital number, since it uses as much as digits as its factorization.

201120110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55210920.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201120110111 its reverse (111011021102), we get a palindrome (312131131213).

The spelling of 201120110111 in words is "two hundred one billion, one hundred twenty million, one hundred ten thousand, one hundred eleven".