111300010020 has 72 divisors (see below), whose sum is σ = 349251771960. Its totient is φ = 28656552960.

The previous prime is 111300009971. The next prime is 111300010037. The reversal of 111300010020 is 20010003111.

It can be written as a sum of positive squares in 4 ways, for example, as 28490739264 + 82809270756 = 168792^2 + 287766^2 .

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 = 111300009984 and 111300010011.

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, 10655701 + ... + 10666140.

It is an arithmetic number, because the mean of its divisors is an integer number (4850719055).

Almost surely, 2^111300010020 is an apocalyptic number.

111300010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111300010020 is an abundant number, since it is smaller than the sum of its proper divisors (237951761940).

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

111300010020 is a wasteful number, since it uses less digits than its factorization.

111300010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21321885 (or 21321880 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 111300010020 its reverse (20010003111), we get a palindrome (131310013131).

The spelling of 111300010020 in words is "one hundred eleven billion, three hundred million, ten thousand, twenty".