111101111103 has 4 divisors (see below), whose sum is σ = 148134814808. Its totient is φ = 74067407400.

The previous prime is 111101111071. The next prime is 111101111123. The reversal of 111101111103 is 301111101111.

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

It is not a de Polignac number, because 111101111103 - 2⁵ = 111101111071 is a prime.

It is a super-3 number, since 3×111101111103³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101111123) 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, 18516851848 + ... + 18516851853.

It is an arithmetic number, because the mean of its divisors is an integer number (37033703702).

Almost surely, 2^111101111103 is an apocalyptic number.

111101111103 is a deficient number, since it is larger than the sum of its proper divisors (37033703705).

111101111103 is an equidigital number, since it uses as much as digits as its factorization.

111101111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37033703704.

The product of its (nonzero) digits is 3, while the sum is 12.

Adding to 111101111103 its reverse (301111101111), we get a palindrome (412212212214).

The spelling of 111101111103 in words is "one hundred eleven billion, one hundred one million, one hundred eleven thousand, one hundred three".