12312361 has 4 divisors (see below), whose sum is σ = 12960400. Its totient is φ = 11664324.

The previous prime is 12312359. The next prime is 12312397. The reversal of 12312361 is 16321321.

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 12312361 - 2¹ = 12312359 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: 648019 = 12312361 / (1 + 2 + 3 + 1 + 2 + 3 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312331) 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, 323991 + ... + 324028.

It is an arithmetic number, because the mean of its divisors is an integer number (3240100).

Almost surely, 2^12312361 is an apocalyptic number.

It is an amenable number.

12312361 is a deficient number, since it is larger than the sum of its proper divisors (648039).

12312361 is an equidigital number, since it uses as much as digits as its factorization.

12312361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648038.

The product of its digits is 216, while the sum is 19.

The square root of 12312361 is about 3508.8974051688. The cubic root of 12312361 is about 230.9123246916.

Adding to 12312361 its reverse (16321321), we get a palindrome (28633682).

The spelling of 12312361 in words is "twelve million, three hundred twelve thousand, three hundred sixty-one".