12343231 has 2 divisors, whose sum is σ = 12343232. Its totient is φ = 12343230.

The previous prime is 12343189. The next prime is 12343271. The reversal of 12343231 is 13234321.

It is a strong prime.

It is an emirp because it is prime and its reverse (13234321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12343231 - 2¹⁷ = 12212159 is a prime.

It is a super-2 number, since 2×12343231² = 304710703038722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12343199 and 12343208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12343271) 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 as a sum of consecutive naturals, namely, 6171615 + 6171616.

It is an arithmetic number, because the mean of its divisors is an integer number (6171616).

Almost surely, 2^12343231 is an apocalyptic number.

12343231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12343231 is an equidigital number, since it uses as much as digits as its factorization.

12343231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 19.

The square root of 12343231 is about 3513.2934690971. The cubic root of 12343231 is about 231.1051475611.

Adding to 12343231 its reverse (13234321), we get a palindrome (25577552).

It can be divided in two parts, 1234 and 3231, that added together give a triangular number (4465 = T₉₄).

The spelling of 12343231 in words is "twelve million, three hundred forty-three thousand, two hundred thirty-one".