111000101101101 has 24 divisors (see below), whose sum is σ = 160360820372480. Its totient is φ = 73987449502176.

The previous prime is 111000101101061. The next prime is 111000101101103. The reversal of 111000101101101 is 101101101000111.

It is a de Polignac number, because none of the positive numbers 2^k-111000101101101 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000101101103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2492513631 + ... + 2492558163.

Almost surely, 2^{111000101101101} is an apocalyptic number.

It is an amenable number.

111000101101101 is a deficient number, since it is larger than the sum of its proper divisors (49360719271379).

111000101101101 is a wasteful number, since it uses less digits than its factorization.

111000101101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85545 (or 85542 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111000101101101 its reverse (101101101000111), we get a palindrome (212101202101212).

It can be divided in two parts, 111000 and 101101101, that added together give a palindrome (101212101).

The spelling of 111000101101101 in words is "one hundred eleven trillion, one hundred one million, one hundred one thousand, one hundred one".