4343434321 has 2 divisors, whose sum is σ = 4343434322. Its totient is φ = 4343434320.

The previous prime is 4343434279. The next prime is 4343434327. The reversal of 4343434321 is 1234343434.

4343434321 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4155607296 + 187827025 = 64464^2 + 13705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4343434321 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (4343434327) 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, 2171717160 + 2171717161.

It is an arithmetic number, because the mean of its divisors is an integer number (2171717161).

Almost surely, 2^4343434321 is an apocalyptic number.

It is an amenable number.

4343434321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4343434321 is an equidigital number, since it uses as much as digits as its factorization.

4343434321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 31.

The square root of 4343434321 is about 65904.7367114079. The cubic root of 4343434321 is about 1631.5901930280.

Adding to 4343434321 its reverse (1234343434), we get a palindrome (5577777755).

The spelling of 4343434321 in words is "four billion, three hundred forty-three million, four hundred thirty-four thousand, three hundred twenty-one".