1223434343 has 2 divisors, whose sum is σ = 1223434344. Its totient is φ = 1223434342.

The previous prime is 1223434319. The next prime is 1223434349. The reversal of 1223434343 is 3434343221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1223434343 - 2¹⁸ = 1223172199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223434349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611717171 + 611717172.

It is an arithmetic number, because the mean of its divisors is an integer number (611717172).

Almost surely, 2^1223434343 is an apocalyptic number.

1223434343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223434343 is an equidigital number, since it uses as much as digits as its factorization.

1223434343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 29.

The square root of 1223434343 is about 34977.6263202636. The cubic root of 1223434343 is about 1069.5314404034.

Adding to 1223434343 its reverse (3434343221), we get a palindrome (4657777564).

The spelling of 1223434343 in words is "one billion, two hundred twenty-three million, four hundred thirty-four thousand, three hundred forty-three".