23003230021 has 2 divisors, whose sum is σ = 23003230022. Its totient is φ = 23003230020.

The previous prime is 23003230001. The next prime is 23003230027. The reversal of 23003230021 is 12003230032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13219250625 + 9783979396 = 114975^2 + 98914^2 .

It is a cyclic number.

It is not a de Polignac number, because 23003230021 - 2⁵ = 23003229989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23003229977 and 23003230004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23003230027) 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, 11501615010 + 11501615011.

It is an arithmetic number, because the mean of its divisors is an integer number (11501615011).

Almost surely, 2^23003230021 is an apocalyptic number.

It is an amenable number.

23003230021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23003230021 is an equidigital number, since it uses as much as digits as its factorization.

23003230021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 23003230021 its reverse (12003230032), we get a palindrome (35006460053).

The spelling of 23003230021 in words is "twenty-three billion, three million, two hundred thirty thousand, twenty-one".