12810313 has 4 divisors (see below), whose sum is σ = 13484560. Its totient is φ = 12136068.

The previous prime is 12810311. The next prime is 12810323. The reversal of 12810313 is 31301821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12810313 - 2¹ = 12810311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 674227 = 12810313 / (1 + 2 + 8 + 1 + 0 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12810311) 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 in 3 ways as a sum of consecutive naturals, for example, 337095 + ... + 337132.

It is an arithmetic number, because the mean of its divisors is an integer number (3371140).

Almost surely, 2^12810313 is an apocalyptic number.

It is an amenable number.

12810313 is a deficient number, since it is larger than the sum of its proper divisors (674247).

12810313 is an equidigital number, since it uses as much as digits as its factorization.

12810313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674246.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12810313 is about 3579.1497593702. The cubic root of 12810313 is about 233.9842259316.

The spelling of 12810313 in words is "twelve million, eight hundred ten thousand, three hundred thirteen".