111116573 has 4 divisors (see below), whose sum is σ = 117652860. Its totient is φ = 104580288.

The previous prime is 111116569. The next prime is 111116591. The reversal of 111116573 is 375611111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 375611111 = 7253 ⋅51787.

It can be written as a sum of positive squares in 2 ways, for example, as 33200644 + 77915929 = 5762^2 + 8827^2 .

It is a cyclic number.

It is not a de Polignac number, because 111116573 - 2² = 111116569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111116543) 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, 3268118 + ... + 3268151.

It is an arithmetic number, because the mean of its divisors is an integer number (29413215).

Almost surely, 2^111116573 is an apocalyptic number.

It is an amenable number.

111116573 is a deficient number, since it is larger than the sum of its proper divisors (6536287).

111116573 is an equidigital number, since it uses as much as digits as its factorization.

111116573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536286.

The product of its digits is 630, while the sum is 26.

The square root of 111116573 is about 10541.1846108490. The cubic root of 111116573 is about 480.7577340470.

Adding to 111116573 its reverse (375611111), we get a palindrome (486727684).

The spelling of 111116573 in words is "one hundred eleven million, one hundred sixteen thousand, five hundred seventy-three".