12243403 has 2 divisors, whose sum is σ = 12243404. Its totient is φ = 12243402.

The previous prime is 12243401. The next prime is 12243431. The reversal of 12243403 is 30434221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12243403 - 2¹ = 12243401 is a prime.

Together with 12243401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12243401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6121701 + 6121702.

It is an arithmetic number, because the mean of its divisors is an integer number (6121702).

Almost surely, 2^12243403 is an apocalyptic number.

12243403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12243403 is an equidigital number, since it uses as much as digits as its factorization.

12243403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 12243403 is about 3499.0574445127. The cubic root of 12243403 is about 230.4804261544.

Adding to 12243403 its reverse (30434221), we get a palindrome (42677624).

The spelling of 12243403 in words is "twelve million, two hundred forty-three thousand, four hundred three".