23201103221 has 2 divisors, whose sum is σ = 23201103222. Its totient is φ = 23201103220.

The previous prime is 23201103197. The next prime is 23201103223. The reversal of 23201103221 is 12230110232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21679323121 + 1521780100 = 147239^2 + 39010^2 .

It is a cyclic number.

It is not a de Polignac number, because 23201103221 - 2⁶ = 23201103157 is a prime.

Together with 23201103223, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23201103221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23201103223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600551610 + 11600551611.

It is an arithmetic number, because the mean of its divisors is an integer number (11600551611).

Almost surely, 2^23201103221 is an apocalyptic number.

It is an amenable number.

23201103221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23201103221 is an equidigital number, since it uses as much as digits as its factorization.

23201103221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23201103221 its reverse (12230110232), we get a palindrome (35431213453).

The spelling of 23201103221 in words is "twenty-three billion, two hundred one million, one hundred three thousand, two hundred twenty-one".