12015313 has 4 divisors (see below), whose sum is σ = 12041728. Its totient is φ = 11988900.

The previous prime is 12015307. The next prime is 12015359. The reversal of 12015313 is 31351021.

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 12015313 - 2⁵ = 12015281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12015373) 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, 12513 + ... + 13438.

It is an arithmetic number, because the mean of its divisors is an integer number (3010432).

Almost surely, 2^12015313 is an apocalyptic number.

It is an amenable number.

12015313 is a deficient number, since it is larger than the sum of its proper divisors (26415).

12015313 is an equidigital number, since it uses as much as digits as its factorization.

12015313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26414.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 12015313 is about 3466.3111516423. The cubic root of 12015313 is about 229.0401905013.

Adding to 12015313 its reverse (31351021), we get a palindrome (43366334).

The spelling of 12015313 in words is "twelve million, fifteen thousand, three hundred thirteen".