111113617 has 4 divisors (see below), whose sum is σ = 111779136. Its totient is φ = 110448100.

The previous prime is 111113543. The next prime is 111113623. The reversal of 111113617 is 716311111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111113617 - 2⁷ = 111113489 is a prime.

It is a super-3 number, since 3×111113617³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111113657) 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, 332509 + ... + 332842.

It is an arithmetic number, because the mean of its divisors is an integer number (27944784).

Almost surely, 2^111113617 is an apocalyptic number.

It is an amenable number.

111113617 is a deficient number, since it is larger than the sum of its proper divisors (665519).

111113617 is an equidigital number, since it uses as much as digits as its factorization.

111113617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665518.

The product of its digits is 126, while the sum is 22.

The square root of 111113617 is about 10541.0443979712. The cubic root of 111113617 is about 480.7534708591.

Adding to 111113617 its reverse (716311111), we get a palindrome (827424728).

The spelling of 111113617 in words is "one hundred eleven million, one hundred thirteen thousand, six hundred seventeen".