111432342 has 64 divisors (see below), whose sum is σ = 263176704. Its totient is φ = 30792960.

The previous prime is 111432329. The next prime is 111432353. The reversal of 111432342 is 243234111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280488 + ... + 280884.

It is an arithmetic number, because the mean of its divisors is an integer number (4112136).

Almost surely, 2^111432342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111432342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131588352).

111432342 is an abundant number, since it is smaller than the sum of its proper divisors (151744362).

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

111432342 is a wasteful number, since it uses less digits than its factorization.

111432342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its digits is 576, while the sum is 21.

The square root of 111432342 is about 10556.1518556716. The cubic root of 111432342 is about 481.2127061222.

Adding to 111432342 its reverse (243234111), we get a palindrome (354666453).

The spelling of 111432342 in words is "one hundred eleven million, four hundred thirty-two thousand, three hundred forty-two".