1243341347 has 2 divisors, whose sum is σ = 1243341348. Its totient is φ = 1243341346.

The previous prime is 1243341293. The next prime is 1243341349. The reversal of 1243341347 is 7431433421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1243341347 - 2¹⁸ = 1243079203 is a prime.

Together with 1243341349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1243341349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621670673 + 621670674.

It is an arithmetic number, because the mean of its divisors is an integer number (621670674).

Almost surely, 2^1243341347 is an apocalyptic number.

1243341347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243341347 is an equidigital number, since it uses as much as digits as its factorization.

1243341347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 32.

The square root of 1243341347 is about 35261.0457445607. The cubic root of 1243341347 is about 1075.3011875018.

Adding to 1243341347 its reverse (7431433421), we get a palindrome (8674774768).

The spelling of 1243341347 in words is "one billion, two hundred forty-three million, three hundred forty-one thousand, three hundred forty-seven".