111242203 has 4 divisors (see below), whose sum is σ = 117785880. Its totient is φ = 104698528.

The previous prime is 111242141. The next prime is 111242213. The reversal of 111242203 is 302242111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302242111 = 167 ⋅1809833.

It is a cyclic number.

It is not a de Polignac number, because 111242203 - 2¹⁷ = 111111131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111242213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3271813 + ... + 3271846.

It is an arithmetic number, because the mean of its divisors is an integer number (29446470).

Almost surely, 2^111242203 is an apocalyptic number.

111242203 is a deficient number, since it is larger than the sum of its proper divisors (6543677).

111242203 is an equidigital number, since it uses as much as digits as its factorization.

111242203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6543676.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 111242203 is about 10547.1419351405. The cubic root of 111242203 is about 480.9388496827.

Adding to 111242203 its reverse (302242111), we get a palindrome (413484314).

The spelling of 111242203 in words is "one hundred eleven million, two hundred forty-two thousand, two hundred three".