23030003221 has 4 divisors (see below), whose sum is σ = 23030352972. Its totient is φ = 23029653472.

The previous prime is 23030003153. The next prime is 23030003263. The reversal of 23030003221 is 12230003032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13574580100 + 9455423121 = 116510^2 + 97239^2 .

It is a cyclic number.

It is not a de Polignac number, because 23030003221 - 2²⁹ = 22493132309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23030003195 and 23030003204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23030003021) 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 in 3 ways as a sum of consecutive naturals, for example, 42910 + ... + 218863.

It is an arithmetic number, because the mean of its divisors is an integer number (5757588243).

Almost surely, 2^23030003221 is an apocalyptic number.

It is an amenable number.

23030003221 is a deficient number, since it is larger than the sum of its proper divisors (349751).

23030003221 is an equidigital number, since it uses as much as digits as its factorization.

23030003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349750.

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

Adding to 23030003221 its reverse (12230003032), we get a palindrome (35260006253).

The spelling of 23030003221 in words is "twenty-three billion, thirty million, three thousand, two hundred twenty-one".