111423432 has 16 divisors (see below), whose sum is σ = 278558640. Its totient is φ = 37141136.

The previous prime is 111423421. The next prime is 111423463. The reversal of 111423432 is 234324111.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 111423399 and 111423408.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2321298 + ... + 2321345.

It is an arithmetic number, because the mean of its divisors is an integer number (17409915).

Almost surely, 2^111423432 is an apocalyptic number.

111423432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111423432 is an abundant number, since it is smaller than the sum of its proper divisors (167135208).

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

111423432 is a wasteful number, since it uses less digits than its factorization.

111423432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642652 (or 4642648 counting only the distinct ones).

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

The square root of 111423432 is about 10555.7298184446. The cubic root of 111423432 is about 481.1998800449.

Adding to 111423432 its reverse (234324111), we get a palindrome (345747543).

The spelling of 111423432 in words is "one hundred eleven million, four hundred twenty-three thousand, four hundred thirty-two".