111113002020 has 48 divisors (see below), whose sum is σ = 318704617728. Its totient is φ = 28907447040.

The previous prime is 111113001977. The next prime is 111113002043. The reversal of 111113002020 is 20200311111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111113001987 and 111113002005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22581484 + ... + 22586403.

It is an arithmetic number, because the mean of its divisors is an integer number (6639679536).

Almost surely, 2^111113002020 is an apocalyptic number.

111113002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111113002020 is an abundant number, since it is smaller than the sum of its proper divisors (207591615708).

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

111113002020 is a wasteful number, since it uses less digits than its factorization.

111113002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45167940 (or 45167938 counting only the distinct ones).

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

Adding to 111113002020 its reverse (20200311111), we get a palindrome (131313313131).

The spelling of 111113002020 in words is "one hundred eleven billion, one hundred thirteen million, two thousand, twenty".