111000013020 has 72 divisors (see below), whose sum is σ = 362600050176. Its totient is φ = 27323079552.

The previous prime is 111000013013. The next prime is 111000013051. The reversal of 111000013020 is 20310000111.

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 = 111000012993 and 111000013011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23715612 + ... + 23720291.

It is an arithmetic number, because the mean of its divisors is an integer number (5036111808).

Almost surely, 2^111000013020 is an apocalyptic number.

111000013020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111000013020 is an abundant number, since it is smaller than the sum of its proper divisors (251600037156).

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

111000013020 is a wasteful number, since it uses less digits than its factorization.

111000013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47435931 (or 47435926 counting only the distinct ones).

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

Adding to 111000013020 its reverse (20310000111), we get a palindrome (131310013131).

The spelling of 111000013020 in words is "one hundred eleven billion, thirteen thousand, twenty".