4223324323021 has 2 divisors, whose sum is σ = 4223324323022. Its totient is φ = 4223324323020.

The previous prime is 4223324322989. The next prime is 4223324323037. The reversal of 4223324323021 is 1203234233224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4075307150121 + 148017172900 = 2018739^2 + 384730^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223324323021 - 2⁵ = 4223324322989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4223324323121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111662161510 + 2111662161511.

It is an arithmetic number, because the mean of its divisors is an integer number (2111662161511).

Almost surely, 2^{4223324323021} is an apocalyptic number.

It is an amenable number.

4223324323021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223324323021 is an equidigital number, since it uses as much as digits as its factorization.

4223324323021 is an evil number, because the sum of its binary digits is even.

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

Adding to 4223324323021 its reverse (1203234233224), we get a palindrome (5426558556245).

The spelling of 4223324323021 in words is "four trillion, two hundred twenty-three billion, three hundred twenty-four million, three hundred twenty-three thousand, twenty-one".