23000420221 has 4 divisors (see below), whose sum is σ = 23489790912. Its totient is φ = 22511049532.

The previous prime is 23000420171. The next prime is 23000420273. The reversal of 23000420221 is 12202400032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23000420221 - 2³³ = 14410485629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23000420195 and 23000420204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000420621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244685275 + ... + 244685368.

It is an arithmetic number, because the mean of its divisors is an integer number (5872447728).

Almost surely, 2^23000420221 is an apocalyptic number.

It is an amenable number.

23000420221 is a deficient number, since it is larger than the sum of its proper divisors (489370691).

23000420221 is an equidigital number, since it uses as much as digits as its factorization.

23000420221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489370690.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 23000420221 its reverse (12202400032), we get a palindrome (35202820253).

The spelling of 23000420221 in words is "twenty-three billion, four hundred twenty thousand, two hundred twenty-one".