23223320021 has 8 divisors (see below), whose sum is σ = 25338489600. Its totient is φ = 21108810240.

The previous prime is 23223320009. The next prime is 23223320047. The reversal of 23223320021 is 12002332232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23223320021 - 2⁶ = 23223319957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23223319975 and 23223320002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223310021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89861 + ... + 233498.

It is an arithmetic number, because the mean of its divisors is an integer number (3167311200).

Almost surely, 2^23223320021 is an apocalyptic number.

It is an amenable number.

23223320021 is a deficient number, since it is larger than the sum of its proper divisors (2115169579).

23223320021 is a wasteful number, since it uses less digits than its factorization.

23223320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329899.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23223320021 its reverse (12002332232), we get a palindrome (35225652253).

The spelling of 23223320021 in words is "twenty-three billion, two hundred twenty-three million, three hundred twenty thousand, twenty-one".