223230310021 has 2 divisors, whose sum is σ = 223230310022. Its totient is φ = 223230310020.

The previous prime is 223230310003. The next prime is 223230310027. The reversal of 223230310021 is 120013032322.

223230310021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179585250625 + 43645059396 = 423775^2 + 208914^2 .

It is a cyclic number.

It is not a de Polignac number, because 223230310021 - 2²⁹ = 222693439109 is a prime.

It is a super-3 number, since 3×223230310021³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223230310027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111615155010 + 111615155011.

It is an arithmetic number, because the mean of its divisors is an integer number (111615155011).

Almost surely, 2^223230310021 is an apocalyptic number.

It is an amenable number.

223230310021 is a deficient number, since it is larger than the sum of its proper divisors (1).

223230310021 is an equidigital number, since it uses as much as digits as its factorization.

223230310021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 223230310021 its reverse (120013032322), we get a palindrome (343243342343).

The spelling of 223230310021 in words is "two hundred twenty-three billion, two hundred thirty million, three hundred ten thousand, twenty-one".