111432834 has 80 divisors (see below), whose sum is σ = 269549280. Its totient is φ = 34292160.

The previous prime is 111432833. The next prime is 111432851. The reversal of 111432834 is 438234111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 111432798 and 111432807.

It is not an unprimeable number, because it can be changed into a prime (111432833) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 125757 + ... + 126639.

It is an arithmetic number, because the mean of its divisors is an integer number (3369366).

Almost surely, 2^111432834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111432834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134774640).

111432834 is an abundant number, since it is smaller than the sum of its proper divisors (158116446).

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

111432834 is a wasteful number, since it uses less digits than its factorization.

111432834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 948 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 111432834 is about 10556.1751595926. The cubic root of 111432834 is about 481.2134143436.

Adding to 111432834 its reverse (438234111), we get a palindrome (549666945).

The spelling of 111432834 in words is "one hundred eleven million, four hundred thirty-two thousand, eight hundred thirty-four".