111018161 has 8 divisors (see below), whose sum is σ = 114728448. Its totient is φ = 107316000.

The previous prime is 111018151. The next prime is 111018179. The reversal of 111018161 is 161810111.

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 111018161 - 2²⁶ = 43909297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111018101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39596 + ... + 42306.

It is an arithmetic number, because the mean of its divisors is an integer number (14341056).

Almost surely, 2^111018161 is an apocalyptic number.

It is an amenable number.

111018161 is a deficient number, since it is larger than the sum of its proper divisors (3710287).

111018161 is a wasteful number, since it uses less digits than its factorization.

111018161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063.

The product of its (nonzero) digits is 48, while the sum is 20.

The square root of 111018161 is about 10536.5156005199. The cubic root of 111018161 is about 480.6157621120.

Adding to 111018161 its reverse (161810111), we get a palindrome (272828272).

The spelling of 111018161 in words is "one hundred eleven million, eighteen thousand, one hundred sixty-one".