111200101101 has 16 divisors (see below), whose sum is σ = 164770269120. Its totient is φ = 74120180400.

The previous prime is 111200101099. The next prime is 111200101127. The reversal of 111200101101 is 101101002111.

It is not a de Polignac number, because 111200101101 - 2¹ = 111200101099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200109101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211830 + ... + 516983.

It is an arithmetic number, because the mean of its divisors is an integer number (10298141820).

Almost surely, 2^111200101101 is an apocalyptic number.

It is an amenable number.

111200101101 is a deficient number, since it is larger than the sum of its proper divisors (53570168019).

111200101101 is an equidigital number, since it uses as much as digits as its factorization.

111200101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734473 (or 734467 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111200101101 its reverse (101101002111), we get a palindrome (212301103212).

The spelling of 111200101101 in words is "one hundred eleven billion, two hundred million, one hundred one thousand, one hundred one".