43212341 has 2 divisors, whose sum is σ = 43212342. Its totient is φ = 43212340.

The previous prime is 43212307. The next prime is 43212343. The reversal of 43212341 is 14321234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42523441 + 688900 = 6521^2 + 830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43212341 is a prime.

Together with 43212343, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43212343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21606170 + 21606171.

It is an arithmetic number, because the mean of its divisors is an integer number (21606171).

Almost surely, 2^43212341 is an apocalyptic number.

It is an amenable number.

43212341 is a deficient number, since it is larger than the sum of its proper divisors (1).

43212341 is an equidigital number, since it uses as much as digits as its factorization.

43212341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 20.

The square root of 43212341 is about 6573.6094347018. The cubic root of 43212341 is about 350.9155377219.

Adding to 43212341 its reverse (14321234), we get a palindrome (57533575).

The spelling of 43212341 in words is "forty-three million, two hundred twelve thousand, three hundred forty-one".