23030313221 has 2 divisors, whose sum is σ = 23030313222. Its totient is φ = 23030313220.

The previous prime is 23030313217. The next prime is 23030313301. The reversal of 23030313221 is 12231303032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16592016100 + 6438297121 = 128810^2 + 80239^2 .

It is a cyclic number.

It is not a de Polignac number, because 23030313221 - 2² = 23030313217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23030313193 and 23030313202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23030313121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515156610 + 11515156611.

It is an arithmetic number, because the mean of its divisors is an integer number (11515156611).

Almost surely, 2^23030313221 is an apocalyptic number.

It is an amenable number.

23030313221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23030313221 is an equidigital number, since it uses as much as digits as its factorization.

23030313221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23030313221 its reverse (12231303032), we get a palindrome (35261616253).

The spelling of 23030313221 in words is "twenty-three billion, thirty million, three hundred thirteen thousand, two hundred twenty-one".