12820303 has 2 divisors, whose sum is σ = 12820304. Its totient is φ = 12820302.

The previous prime is 12820289. The next prime is 12820337. The reversal of 12820303 is 30302821.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (30302821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12820303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12820343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6410151 + 6410152.

It is an arithmetic number, because the mean of its divisors is an integer number (6410152).

Almost surely, 2^12820303 is an apocalyptic number.

12820303 is a deficient number, since it is larger than the sum of its proper divisors (1).

12820303 is an equidigital number, since it uses as much as digits as its factorization.

12820303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12820303 is about 3580.5450702372. The cubic root of 12820303 is about 234.0450335807.

The spelling of 12820303 in words is "twelve million, eight hundred twenty thousand, three hundred three".