111000111100101 has 24 divisors (see below), whose sum is σ = 161222620881504. Its totient is φ = 73589724499680.

The previous prime is 111000111100079. The next prime is 111000111100117. The reversal of 111000111100101 is 101001111000111.

It is not a de Polignac number, because 111000111100101 - 2⁵ = 111000111100069 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000111100141) 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, 81732730 + ... + 83079716.

It is an arithmetic number, because the mean of its divisors is an integer number (6717609203396).

Almost surely, 2^{111000111100101} is an apocalyptic number.

It is an amenable number.

111000111100101 is a deficient number, since it is larger than the sum of its proper divisors (50222509781403).

111000111100101 is a wasteful number, since it uses less digits than its factorization.

111000111100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397761 (or 1397758 counting only the distinct ones).

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

Adding to 111000111100101 its reverse (101001111000111), we get a palindrome (212001222100212).

The spelling of 111000111100101 in words is "one hundred eleven trillion, one hundred eleven million, one hundred thousand, one hundred one".