12310231 has 4 divisors (see below), whose sum is σ = 12393000. Its totient is φ = 12227464.

The previous prime is 12310229. The next prime is 12310253. The reversal of 12310231 is 13201321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12310231 - 2¹ = 12310229 is a prime.

It is a super-2 number, since 2×12310231² = 303083574546722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41161 + ... + 41458.

It is an arithmetic number, because the mean of its divisors is an integer number (3098250).

Almost surely, 2^12310231 is an apocalyptic number.

12310231 is a deficient number, since it is larger than the sum of its proper divisors (82769).

12310231 is an equidigital number, since it uses as much as digits as its factorization.

12310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82768.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12310231 is about 3508.5938778947. The cubic root of 12310231 is about 230.8990082200.

Adding to 12310231 its reverse (13201321), we get a palindrome (25511552).

The spelling of 12310231 in words is "twelve million, three hundred ten thousand, two hundred thirty-one".