111110111000020 has 48 divisors (see below), whose sum is σ = 254805309251136. Its totient is φ = 40362066272000.

The previous prime is 111110110999963. The next prime is 111110111000027. The reversal of 111110111000020 is 20000111011111.

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 = 111110110999970 and 111110111000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110111000027) 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, 259851241 + ... + 260278480.

It is an arithmetic number, because the mean of its divisors is an integer number (5308443942732).

Almost surely, 2^{111110111000020} is an apocalyptic number.

111110111000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111110111000020 is an abundant number, since it is smaller than the sum of its proper divisors (143695198251116).

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

111110111000020 is a wasteful number, since it uses less digits than its factorization.

111110111000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520130712 (or 520130710 counting only the distinct ones).

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

Adding to 111110111000020 its reverse (20000111011111), we get a palindrome (131110222011131).

It can be divided in two parts, 1111101 and 11000020, that added together give a palindrome (12111121).

The spelling of 111110111000020 in words is "one hundred eleven trillion, one hundred ten billion, one hundred eleven million, twenty", and thus it is an aban number.