111432141 has 6 divisors (see below), whose sum is σ = 160957550. Its totient is φ = 74288088.

The previous prime is 111432109. The next prime is 111432149. The reversal of 111432141 is 141234111.

It can be written as a sum of positive squares in only one way, i.e., 103428900 + 8003241 = 10170^2 + 2829^2 .

It is not a de Polignac number, because 111432141 - 2⁵ = 111432109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111432149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6190666 + ... + 6190683.

Almost surely, 2^111432141 is an apocalyptic number.

It is an amenable number.

111432141 is a deficient number, since it is larger than the sum of its proper divisors (49525409).

111432141 is a wasteful number, since it uses less digits than its factorization.

111432141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12381355 (or 12381352 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 111432141 is about 10556.1423351526. The cubic root of 111432141 is about 481.2124167873.

Adding to 111432141 its reverse (141234111), we get a palindrome (252666252).

The spelling of 111432141 in words is "one hundred eleven million, four hundred thirty-two thousand, one hundred forty-one".