111100023020 has 24 divisors (see below), whose sum is σ = 266640055584. Its totient is φ = 38091436416.

The previous prime is 111100023017. The next prime is 111100023059. The reversal of 111100023020 is 20320001111.

It is a junction number, because it is equal to n+sod(n) for n = 111100022992 and 111100023010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396785657 + ... + 396785936.

It is an arithmetic number, because the mean of its divisors is an integer number (11110002316).

Almost surely, 2^111100023020 is an apocalyptic number.

111100023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111100023020 is an abundant number, since it is smaller than the sum of its proper divisors (155540032564).

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

111100023020 is a wasteful number, since it uses less digits than its factorization.

111100023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793571609 (or 793571607 counting only the distinct ones).

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

Adding to 111100023020 its reverse (20320001111), we get a palindrome (131420024131).

The spelling of 111100023020 in words is "one hundred eleven billion, one hundred million, twenty-three thousand, twenty".