111433420 has 48 divisors (see below), whose sum is σ = 268107840. Its totient is φ = 38110464.

The previous prime is 111433403. The next prime is 111433493. The reversal of 111433420 is 24334111.

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 15 ways as a sum of consecutive naturals, for example, 77266 + ... + 78694.

It is an arithmetic number, because the mean of its divisors is an integer number (5585580).

Almost surely, 2^111433420 is an apocalyptic number.

111433420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111433420 is an abundant number, since it is smaller than the sum of its proper divisors (156674420).

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

111433420 is a wasteful number, since it uses less digits than its factorization.

111433420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 111433420 is about 10556.2029158216. The cubic root of 111433420 is about 481.2142578729.

Adding to 111433420 its reverse (24334111), we get a palindrome (135767531).

The spelling of 111433420 in words is "one hundred eleven million, four hundred thirty-three thousand, four hundred twenty".