111303010020 has 96 divisors (see below), whose sum is σ = 320292838656. Its totient is φ = 28858636800.

The previous prime is 111303009989. The next prime is 111303010031. The reversal of 111303010020 is 20010303111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111303009978 and 111303010005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3337830 + ... + 3371010.

It is an arithmetic number, because the mean of its divisors is an integer number (3336383736).

Almost surely, 2^111303010020 is an apocalyptic number.

111303010020 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 111303010020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160146419328).

111303010020 is an abundant number, since it is smaller than the sum of its proper divisors (208989828636).

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

111303010020 is a wasteful number, since it uses less digits than its factorization.

111303010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34741 (or 34739 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 111303010020 its reverse (20010303111), we get a palindrome (131313313131).

The spelling of 111303010020 in words is "one hundred eleven billion, three hundred three million, ten thousand, twenty".