111100011020 has 48 divisors (see below), whose sum is σ = 235843459488. Its totient is φ = 43958691840.

The previous prime is 111100010999. The next prime is 111100011023. The reversal of 111100011020 is 20110001111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111100010989 and 111100011007.

It is not an unprimeable number, because it can be changed into a prime (111100011023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1401650 + ... + 1478790.

It is an arithmetic number, because the mean of its divisors is an integer number (4913405406).

Almost surely, 2^111100011020 is an apocalyptic number.

111100011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111100011020 is an abundant number, since it is smaller than the sum of its proper divisors (124743448468).

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

111100011020 is a wasteful number, since it uses less digits than its factorization.

111100011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77930 (or 77928 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111100011020 its reverse (20110001111), we get a palindrome (131210012131).

Subtracting from 111100011020 its reverse (20110001111), we obtain a palindrome (90990009909).

The spelling of 111100011020 in words is "one hundred eleven billion, one hundred million, eleven thousand, twenty".