12100003 has 2 divisors, whose sum is σ = 12100004. Its totient is φ = 12100002.

The previous prime is 12099991. The next prime is 12100057. The reversal of 12100003 is 30000121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12100003 is a prime.

It is not a weakly prime, because it can be changed into another prime (12100063) 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 as a sum of consecutive naturals, namely, 6050001 + 6050002.

It is an arithmetic number, because the mean of its divisors is an integer number (6050002).

Almost surely, 2^12100003 is an apocalyptic number.

12100003 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100003 is an equidigital number, since it uses as much as digits as its factorization.

12100003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 12100003 is about 3478.5058574049. The cubic root of 12100003 is about 229.5770614399.

Adding to 12100003 its reverse (30000121), we get a palindrome (42100124).

The spelling of 12100003 in words is "twelve million, one hundred thousand, three".