111103311101 has 4 divisors (see below), whose sum is σ = 111129587100. Its totient is φ = 111077035104.

The previous prime is 111103311097. The next prime is 111103311127. The reversal of 111103311101 is 101113301111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101113301111 = 33179 ⋅3047509.

It can be written as a sum of positive squares in 2 ways, for example, as 103216983076 + 7886328025 = 321274^2 + 88805^2 .

It is a cyclic number.

It is not a de Polignac number, because 111103311101 - 2² = 111103311097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111103311161) 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, 13131656 + ... + 13140113.

It is an arithmetic number, because the mean of its divisors is an integer number (27782396775).

Almost surely, 2^111103311101 is an apocalyptic number.

It is an amenable number.

111103311101 is a deficient number, since it is larger than the sum of its proper divisors (26275999).

111103311101 is an equidigital number, since it uses as much as digits as its factorization.

111103311101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26275998.

The product of its (nonzero) digits is 9, while the sum is 14.

Adding to 111103311101 its reverse (101113301111), we get a palindrome (212216612212).

The spelling of 111103311101 in words is "one hundred eleven billion, one hundred three million, three hundred eleven thousand, one hundred one".