12103243 has 2 divisors, whose sum is σ = 12103244. Its totient is φ = 12103242.

The previous prime is 12103213. The next prime is 12103249. The reversal of 12103243 is 34230121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12103243 - 2¹⁷ = 11972171 is a prime.

It is a super-2 number, since 2×12103243² = 292976982234098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12103249) 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, 6051621 + 6051622.

It is an arithmetic number, because the mean of its divisors is an integer number (6051622).

Almost surely, 2^12103243 is an apocalyptic number.

12103243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103243 is an equidigital number, since it uses as much as digits as its factorization.

12103243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12103243 is about 3478.9715434306. The cubic root of 12103243 is about 229.5975507818.

Adding to 12103243 its reverse (34230121), we get a palindrome (46333364).

The spelling of 12103243 in words is "twelve million, one hundred three thousand, two hundred forty-three".