4213043321 has 2 divisors, whose sum is σ = 4213043322. Its totient is φ = 4213043320.

The previous prime is 4213043287. The next prime is 4213043327. The reversal of 4213043321 is 1233403124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3397141225 + 815902096 = 58285^2 + 28564^2 .

It is a cyclic number.

It is not a de Polignac number, because 4213043321 - 2¹⁰ = 4213042297 is a prime.

It is not a weakly prime, because it can be changed into another prime (4213043327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106521660 + 2106521661.

It is an arithmetic number, because the mean of its divisors is an integer number (2106521661).

Almost surely, 2^4213043321 is an apocalyptic number.

It is an amenable number.

4213043321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4213043321 is an equidigital number, since it uses as much as digits as its factorization.

4213043321 is an evil number, because the sum of its binary digits is even.

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

The square root of 4213043321 is about 64907.9603823753. The cubic root of 4213043321 is about 1615.0971158934.

Adding to 4213043321 its reverse (1233403124), we get a palindrome (5446446445).

The spelling of 4213043321 in words is "four billion, two hundred thirteen million, forty-three thousand, three hundred twenty-one".