12134431 has 2 divisors, whose sum is σ = 12134432. Its totient is φ = 12134430.

The previous prime is 12134429. The next prime is 12134449. The reversal of 12134431 is 13443121.

12134431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12134431 - 2¹ = 12134429 is a prime.

It is a super-2 number, since 2×12134431² = 294488831387522, which contains 22 as substring.

Together with 12134429, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12134399 and 12134408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12134461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6067215 + 6067216.

It is an arithmetic number, because the mean of its divisors is an integer number (6067216).

Almost surely, 2^12134431 is an apocalyptic number.

12134431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12134431 is an equidigital number, since it uses as much as digits as its factorization.

12134431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 12134431 is about 3483.4510187456. The cubic root of 12134431 is about 229.7945929183.

Adding to 12134431 its reverse (13443121), we get a palindrome (25577552).

The spelling of 12134431 in words is "twelve million, one hundred thirty-four thousand, four hundred thirty-one".