23230290221 has 2 divisors, whose sum is σ = 23230290222. Its totient is φ = 23230290220.

The previous prime is 23230290179. The next prime is 23230290229. The reversal of 23230290221 is 12209203232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15127770025 + 8102520196 = 122995^2 + 90014^2 .

It is a cyclic number.

It is not a de Polignac number, because 23230290221 - 2¹⁴ = 23230273837 is a prime.

It is a super-3 number, since 3×23230290221³ (a number of 32 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23230290229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615145110 + 11615145111.

It is an arithmetic number, because the mean of its divisors is an integer number (11615145111).

Almost surely, 2^23230290221 is an apocalyptic number.

It is an amenable number.

23230290221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23230290221 is an equidigital number, since it uses as much as digits as its factorization.

23230290221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 23230290221 its reverse (12209203232), we get a palindrome (35439493453).

The spelling of 23230290221 in words is "twenty-three billion, two hundred thirty million, two hundred ninety thousand, two hundred twenty-one".