111432213 has 16 divisors (see below), whose sum is σ = 166389760. Its totient is φ = 73700928.

The previous prime is 111432199. The next prime is 111432247. The reversal of 111432213 is 312234111.

It is not a de Polignac number, because 111432213 - 2⁶ = 111432149 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 (111432913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12820 + ... + 19677.

It is an arithmetic number, because the mean of its divisors is an integer number (10399360).

Almost surely, 2^111432213 is an apocalyptic number.

It is an amenable number.

111432213 is a deficient number, since it is larger than the sum of its proper divisors (54957547).

111432213 is a wasteful number, since it uses less digits than its factorization.

111432213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32633 (or 32627 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 111432213 is about 10556.1457454887. The cubic root of 111432213 is about 481.2125204297.

Adding to 111432213 its reverse (312234111), we get a palindrome (423666324).

The spelling of 111432213 in words is "one hundred eleven million, four hundred thirty-two thousand, two hundred thirteen".