111111073 has 8 divisors (see below), whose sum is σ = 113294336. Its totient is φ = 108939600.

The previous prime is 111111067. The next prime is 111111089. The reversal of 111111073 is 370111111.

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 111111073 - 2⁵ = 111111041 is a prime.

It is a super-2 number, since 2×111111073² = 24691341086422658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111111023) 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, 17440 + ... + 22942.

It is an arithmetic number, because the mean of its divisors is an integer number (14161792).

Almost surely, 2^111111073 is an apocalyptic number.

It is an amenable number.

111111073 is a deficient number, since it is larger than the sum of its proper divisors (2183263).

111111073 is an equidigital number, since it uses as much as digits as its factorization.

111111073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895.

The product of its (nonzero) digits is 21, while the sum is 16.

The square root of 111111073 is about 10540.9237261257. The cubic root of 111111073 is about 480.7498018034.

Adding to 111111073 its reverse (370111111), we get a palindrome (481222184).

The spelling of 111111073 in words is "one hundred eleven million, one hundred eleven thousand, seventy-three".