111100011100120 has 64 divisors (see below), whose sum is σ = 285687232038720. Its totient is φ = 38091233816064.

The previous prime is 111100011100103. The next prime is 111100011100123. The reversal of 111100011100120 is 21001110001111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 111100011100097 and 111100011100106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100011100123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58985254 + ... + 60839626.

It is an arithmetic number, because the mean of its divisors is an integer number (4463863000605).

Almost surely, 2^{111100011100120} is an apocalyptic number.

111100011100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111100011100120 is an abundant number, since it is smaller than the sum of its proper divisors (174587220938600).

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

111100011100120 is a wasteful number, since it uses less digits than its factorization.

111100011100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068364 (or 2068360 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 111100011100120 its reverse (21001110001111), we get a palindrome (132101121101231).

The spelling of 111100011100120 in words is "one hundred eleven trillion, one hundred billion, eleven million, one hundred thousand, one hundred twenty".