111240113 has 2 divisors, whose sum is σ = 111240114. Its totient is φ = 111240112.

The previous prime is 111240109. The next prime is 111240127. The reversal of 111240113 is 311042111.

It is an a-pointer prime, because the next prime (111240127) can be obtained adding 111240113 to its sum of digits (14).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111154849 + 85264 = 10543^2 + 292^2 .

It is a cyclic number.

It is not a de Polignac number, because 111240113 - 2² = 111240109 is a prime.

It is not a weakly prime, because it can be changed into another prime (111240133) 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 as a sum of consecutive naturals, namely, 55620056 + 55620057.

It is an arithmetic number, because the mean of its divisors is an integer number (55620057).

Almost surely, 2^111240113 is an apocalyptic number.

It is an amenable number.

111240113 is a deficient number, since it is larger than the sum of its proper divisors (1).

111240113 is an equidigital number, since it uses as much as digits as its factorization.

111240113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 111240113 is about 10547.0428557013. The cubic root of 111240113 is about 480.9358377308.

Adding to 111240113 its reverse (311042111), we get a palindrome (422282224).

The spelling of 111240113 in words is "one hundred eleven million, two hundred forty thousand, one hundred thirteen".