12312803 has 2 divisors, whose sum is σ = 12312804. Its totient is φ = 12312802.

The previous prime is 12312799. The next prime is 12312829. The reversal of 12312803 is 30821321.

It is a weak prime.

It is an emirp because it is prime and its reverse (30821321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12312803 - 2² = 12312799 is a prime.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12312863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156401 + 6156402.

It is an arithmetic number, because the mean of its divisors is an integer number (6156402).

Almost surely, 2^12312803 is an apocalyptic number.

12312803 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312803 is an equidigital number, since it uses as much as digits as its factorization.

12312803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12312803 is about 3508.9603873512. The cubic root of 12312803 is about 230.9150878234.

The spelling of 12312803 in words is "twelve million, three hundred twelve thousand, eight hundred three".