111001001100111 has 20 divisors (see below), whose sum is σ = 165848033954152. Its totient is φ = 73986509729808.

The previous prime is 111001001100091. The next prime is 111001001100251. The reversal of 111001001100111 is 111001100100111.

It is not a de Polignac number, because 111001001100111 - 2⁵ = 111001001100079 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 junction number, because it is equal to n+sod(n) for n = 111001001100093 and 111001001100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001001107111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 130663540 + ... + 131510313.

Almost surely, 2^{111001001100111} is an apocalyptic number.

111001001100111 is a deficient number, since it is larger than the sum of its proper divisors (54847032854041).

111001001100111 is an equidigital number, since it uses as much as digits as its factorization.

111001001100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262179092 (or 262179083 counting only the distinct ones).

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

Adding to 111001001100111 its reverse (111001100100111), we get a palindrome (222002101200222).

The spelling of 111001001100111 in words is "one hundred eleven trillion, one billion, one million, one hundred thousand, one hundred eleven".