111011300020 has 96 divisors (see below), whose sum is σ = 243596884608. Its totient is φ = 42462185472.

The previous prime is 111011300009. The next prime is 111011300033. The reversal of 111011300020 is 20003110111.

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

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, 8594407 + ... + 8607313.

It is an arithmetic number, because the mean of its divisors is an integer number (2537467548).

Almost surely, 2^111011300020 is an apocalyptic number.

111011300020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111011300020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121798442304).

111011300020 is an abundant number, since it is smaller than the sum of its proper divisors (132585584588).

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

111011300020 is a wasteful number, since it uses less digits than its factorization.

111011300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13169 (or 13167 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 111011300020 its reverse (20003110111), we get a palindrome (131014410131).

The spelling of 111011300020 in words is "one hundred eleven billion, eleven million, three hundred thousand, twenty".