111000112000020 has 96 divisors (see below), whose sum is σ = 345456975911040. Its totient is φ = 29589461798400.

The previous prime is 111000111999893. The next prime is 111000112000079. The reversal of 111000112000020 is 20000211000111.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 111000111999966 and 111000112000011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35180742 + ... + 38205821.

It is an arithmetic number, because the mean of its divisors is an integer number (3598510165740).

Almost surely, 2^{111000112000020} is an apocalyptic number.

111000112000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111000112000020 is an abundant number, since it is smaller than the sum of its proper divisors (234456863911020).

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

111000112000020 is a wasteful number, since it uses less digits than its factorization.

111000112000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73389382 (or 73389374 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111000112000020 its reverse (20000211000111), we get a palindrome (131000323000131).

Subtracting from 111000112000020 its reverse (20000211000111), we obtain a palindrome (90999900999909).

The spelling of 111000112000020 in words is "one hundred eleven trillion, one hundred twelve million, twenty", and thus it is an aban number.