111102121320 has 128 divisors (see below), whose sum is σ = 339807312000. Its totient is φ = 29050072064.

The previous prime is 111102121297. The next prime is 111102121321. The reversal of 111102121320 is 23121201111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111102121320.

It is not an unprimeable number, because it can be changed into a prime (111102121321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12391159 + ... + 12400121.

It is an arithmetic number, because the mean of its divisors is an integer number (2654744625).

Almost surely, 2^111102121320 is an apocalyptic number.

111102121320 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 111102121320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169903656000).

111102121320 is an abundant number, since it is smaller than the sum of its proper divisors (228705190680).

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

111102121320 is a wasteful number, since it uses less digits than its factorization.

111102121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10979 (or 10975 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111102121320 its reverse (23121201111), we get a palindrome (134223322431).

The spelling of 111102121320 in words is "one hundred eleven billion, one hundred two million, one hundred twenty-one thousand, three hundred twenty".