4213430321 has 2 divisors, whose sum is σ = 4213430322. Its totient is φ = 4213430320.

The previous prime is 4213430269. The next prime is 4213430327. The reversal of 4213430321 is 1230343124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3559912225 + 653518096 = 59665^2 + 25564^2 .

It is a cyclic number.

It is not a de Polignac number, because 4213430321 - 2¹⁸ = 4213168177 is a prime.

It is not a weakly prime, because it can be changed into another prime (4213430327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106715160 + 2106715161.

It is an arithmetic number, because the mean of its divisors is an integer number (2106715161).

Almost surely, 2^4213430321 is an apocalyptic number.

It is an amenable number.

4213430321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4213430321 is an equidigital number, since it uses as much as digits as its factorization.

4213430321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 4213430321 is about 64910.9414582780. The cubic root of 4213430321 is about 1615.1465673548.

Adding to 4213430321 its reverse (1230343124), we get a palindrome (5443773445).

The spelling of 4213430321 in words is "four billion, two hundred thirteen million, four hundred thirty thousand, three hundred twenty-one".