111023112020 has 24 divisors (see below), whose sum is σ = 233209302144. Its totient is φ = 44397670176.

The previous prime is 111023111989. The next prime is 111023112073. The reversal of 111023112020 is 20211320111.

It is a super-2 number, since 2×111023112020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111023111986 and 111023112004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644552 + ... + 798431.

It is an arithmetic number, because the mean of its divisors is an integer number (9717054256).

Almost surely, 2^111023112020 is an apocalyptic number.

111023112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111023112020 is an abundant number, since it is smaller than the sum of its proper divisors (122186190124).

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

111023112020 is a wasteful number, since it uses less digits than its factorization.

111023112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446839 (or 1446837 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 111023112020 its reverse (20211320111), we get a palindrome (131234432131).

The spelling of 111023112020 in words is "one hundred eleven billion, twenty-three million, one hundred twelve thousand, twenty".