12118103 has 2 divisors, whose sum is σ = 12118104. Its totient is φ = 12118102.

The previous prime is 12118087. The next prime is 12118109. The reversal of 12118103 is 30181121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12118103 - 2⁴ = 12118087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12118109) by changing a digit.

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 as a sum of consecutive naturals, namely, 6059051 + 6059052.

It is an arithmetic number, because the mean of its divisors is an integer number (6059052).

Almost surely, 2^12118103 is an apocalyptic number.

12118103 is a deficient number, since it is larger than the sum of its proper divisors (1).

12118103 is an equidigital number, since it uses as much as digits as its factorization.

12118103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 12118103 is about 3481.1065769379. The cubic root of 12118103 is about 229.6914766893.

Adding to 12118103 its reverse (30181121), we get a palindrome (42299224).

It can be divided in two parts, 12118 and 103, that added together give a palindrome (12221).

The spelling of 12118103 in words is "twelve million, one hundred eighteen thousand, one hundred three".