12018118 has 16 divisors (see below), whose sum is σ = 21160224. Its totient is φ = 5011200.

The previous prime is 12018107. The next prime is 12018163. The reversal of 12018118 is 81181021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11083 + ... + 12118.

It is an arithmetic number, because the mean of its divisors is an integer number (1322514).

Almost surely, 2^12018118 is an apocalyptic number.

12018118 is a deficient number, since it is larger than the sum of its proper divisors (9142106).

12018118 is a wasteful number, since it uses less digits than its factorization.

12018118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23247.

The product of its (nonzero) digits is 128, while the sum is 22.

The square root of 12018118 is about 3466.7157368322. The cubic root of 12018118 is about 229.0580124187.

Adding to 12018118 its reverse (81181021), we get a palindrome (93199139).

The spelling of 12018118 in words is "twelve million, eighteen thousand, one hundred eighteen".