111113021320 has 96 divisors (see below), whose sum is σ = 290974420800. Its totient is φ = 38075839872.

The previous prime is 111113021221. The next prime is 111113021323. The reversal of 111113021320 is 23120311111.

It is a happy number.

It is a super-3 number, since 3×111113021320³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 111113021294 and 111113021303.

It is not an unprimeable number, because it can be changed into a prime (111113021323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3982539 + ... + 4010341.

It is an arithmetic number, because the mean of its divisors is an integer number (3030983550).

Almost surely, 2^111113021320 is an apocalyptic number.

111113021320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111113021320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145487210400).

111113021320 is an abundant number, since it is smaller than the sum of its proper divisors (179861399480).

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

111113021320 is a wasteful number, since it uses less digits than its factorization.

111113021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29867 (or 29856 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111113021320 its reverse (23120311111), we get a palindrome (134233332431).

The spelling of 111113021320 in words is "one hundred eleven billion, one hundred thirteen million, twenty-one thousand, three hundred twenty".