111117241 has 8 divisors (see below), whose sum is σ = 115550280. Its totient is φ = 106724352.

The previous prime is 111117239. The next prime is 111117269. The reversal of 111117241 is 142711111.

It can be written as a sum of positive squares in 4 ways, for example, as 783225 + 110334016 = 885^2 + 10504^2 .

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 111117241 - 2¹ = 111117239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111117211) 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, 4330 + ... + 15523.

It is an arithmetic number, because the mean of its divisors is an integer number (14443785).

Almost surely, 2^111117241 is an apocalyptic number.

It is an amenable number.

111117241 is a deficient number, since it is larger than the sum of its proper divisors (4433039).

111117241 is a wasteful number, since it uses less digits than its factorization.

111117241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20075.

The product of its digits is 56, while the sum is 19.

The square root of 111117241 is about 10541.2162960448. The cubic root of 111117241 is about 480.7586974362.

Adding to 111117241 its reverse (142711111), we get a palindrome (253828352).

The spelling of 111117241 in words is "one hundred eleven million, one hundred seventeen thousand, two hundred forty-one".