20111120300 has 72 divisors (see below), whose sum is σ = 44523712800. Its totient is φ = 7882168320.

The previous prime is 20111120299. The next prime is 20111120311. The reversal of 20111120300 is 302111102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4868636 + ... + 4872764.

It is an arithmetic number, because the mean of its divisors is an integer number (618384900).

Almost surely, 2^20111120300 is an apocalyptic number.

20111120300 is a gapful number since it is divisible by the number (20) 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 20111120300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22261856400).

20111120300 is an abundant number, since it is smaller than the sum of its proper divisors (24412592500).

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

20111120300 is a wasteful number, since it uses less digits than its factorization.

20111120300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115 (or 5108 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20111120300 its reverse (302111102), we get a palindrome (20413231402).

The spelling of 20111120300 in words is "twenty billion, one hundred eleven million, one hundred twenty thousand, three hundred".