111101111001108 has 48 divisors (see below), whose sum is σ = 289110697848000. Its totient is φ = 36896031896544.

The previous prime is 111101111001107. The next prime is 111101111001131. The reversal of 111101111001108 is 801100111101111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101111001107) 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, 1912078738 + ... + 1912136841.

It is an arithmetic number, because the mean of its divisors is an integer number (6023139538500).

Almost surely, 2^{111101111001108} is an apocalyptic number.

111101111001108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

111101111001108 is an abundant number, since it is smaller than the sum of its proper divisors (178009586846892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111101111001108 is a wasteful number, since it uses less digits than its factorization.

111101111001108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824215861 (or 3824215853 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 18.

Adding to 111101111001108 its reverse (801100111101111), we get a palindrome (912201222102219).

The spelling of 111101111001108 in words is "one hundred eleven trillion, one hundred one billion, one hundred eleven million, one thousand, one hundred eight".