111321030020 has 96 divisors (see below), whose sum is σ = 247716403200. Its totient is φ = 41904777600.

The previous prime is 111321030017. The next prime is 111321030049. The reversal of 111321030020 is 20030123111.

It is a junction number, because it is equal to n+sod(n) for n = 111321029977 and 111321030004.

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, 57648455 + ... + 57650385.

It is an arithmetic number, because the mean of its divisors is an integer number (2580379200).

Almost surely, 2^111321030020 is an apocalyptic number.

111321030020 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 111321030020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123858201600).

111321030020 is an abundant number, since it is smaller than the sum of its proper divisors (136395373180).

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

111321030020 is a wasteful number, since it uses less digits than its factorization.

111321030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889 (or 2887 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 111321030020 its reverse (20030123111), we get a palindrome (131351153131).

The spelling of 111321030020 in words is "one hundred eleven billion, three hundred twenty-one million, thirty thousand, twenty".