111431203 has 8 divisors (see below), whose sum is σ = 120698928. Its totient is φ = 102262944.

The previous prime is 111431183. The next prime is 111431213. The reversal of 111431203 is 302134111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111431203 - 2¹⁷ = 111300131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111431213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22525 + ... + 27022.

It is an arithmetic number, because the mean of its divisors is an integer number (15087366).

Almost surely, 2^111431203 is an apocalyptic number.

111431203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111431203 is a deficient number, since it is larger than the sum of its proper divisors (9267725).

111431203 is a wasteful number, since it uses less digits than its factorization.

111431203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49733.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 111431203 is about 10556.0979059499. The cubic root of 111431203 is about 481.2110665529.

Adding to 111431203 its reverse (302134111), we get a palindrome (413565314).

The spelling of 111431203 in words is "one hundred eleven million, four hundred thirty-one thousand, two hundred three".