12306231 has 24 divisors (see below), whose sum is σ = 20427680. Its totient is φ = 6993216.

The previous prime is 12306227. The next prime is 12306241. The reversal of 12306231 is 13260321.

12306231 is a `hidden beast` number, since 12 + 30 + 623 + 1 = 666.

It is not a de Polignac number, because 12306231 - 2² = 12306227 is a prime.

It is a super-2 number, since 2×12306231² = 302886642850722, which contains 22 as substring.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12306211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14001 + ... + 14853.

Almost surely, 2^12306231 is an apocalyptic number.

12306231 is a deficient number, since it is larger than the sum of its proper divisors (8121449).

12306231 is a wasteful number, since it uses less digits than its factorization.

12306231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 12306231 is about 3508.0238026558. The cubic root of 12306231 is about 230.8739966101.

Adding to 12306231 its reverse (13260321), we get a palindrome (25566552).

The spelling of 12306231 in words is "twelve million, three hundred six thousand, two hundred thirty-one".