11112110101 has 4 divisors (see below), whose sum is σ = 11112322572. Its totient is φ = 11111897632.

The previous prime is 11112110099. The next prime is 11112110111. The reversal of 11112110101 is 10101121111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10115129476 + 996980625 = 100574^2 + 31575^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112110101 - 2¹ = 11112110099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112110111) 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, 33345 + ... + 152761.

It is an arithmetic number, because the mean of its divisors is an integer number (2778080643).

Almost surely, 2^11112110101 is an apocalyptic number.

It is an amenable number.

11112110101 is a deficient number, since it is larger than the sum of its proper divisors (212471).

11112110101 is an equidigital number, since it uses as much as digits as its factorization.

11112110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212470.

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

Adding to 11112110101 its reverse (10101121111), we get a palindrome (21213231212).

The spelling of 11112110101 in words is "eleven billion, one hundred twelve million, one hundred ten thousand, one hundred one".