12313387 has 4 divisors (see below), whose sum is σ = 12961480. Its totient is φ = 11665296.

The previous prime is 12313381. The next prime is 12313393. The reversal of 12313387 is 78331321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78331321 = 2003 ⋅39107.

It is an interprime number because it is at equal distance from previous prime (12313381) and next prime (12313393).

It is a cyclic number.

It is not a de Polignac number, because 12313387 - 2¹¹ = 12311339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12313381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324018 + ... + 324055.

It is an arithmetic number, because the mean of its divisors is an integer number (3240370).

Almost surely, 2^12313387 is an apocalyptic number.

12313387 is a deficient number, since it is larger than the sum of its proper divisors (648093).

12313387 is an equidigital number, since it uses as much as digits as its factorization.

12313387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648092.

The product of its digits is 3024, while the sum is 28.

The square root of 12313387 is about 3509.0436018950. The cubic root of 12313387 is about 230.9187385567.

The spelling of 12313387 in words is "twelve million, three hundred thirteen thousand, three hundred eighty-seven".