111303243 has 6 divisors (see below), whose sum is σ = 160771364. Its totient is φ = 74202156.

The previous prime is 111303239. The next prime is 111303251. The reversal of 111303243 is 342303111.

It is not a de Polignac number, because 111303243 - 2² = 111303239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111303253) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 6183505 + ... + 6183522.

Almost surely, 2^111303243 is an apocalyptic number.

111303243 is a deficient number, since it is larger than the sum of its proper divisors (49468121).

111303243 is a wasteful number, since it uses less digits than its factorization.

111303243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12367033 (or 12367030 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 111303243 is about 10550.0352132114. The cubic root of 111303243 is about 481.0267993361.

Adding to 111303243 its reverse (342303111), we get a palindrome (453606354).

The spelling of 111303243 in words is "one hundred eleven million, three hundred three thousand, two hundred forty-three".