23021005 has 8 divisors (see below), whose sum is σ = 31571712. Its totient is φ = 15785808.

The previous prime is 23020997. The next prime is 23021029. The reversal of 23021005 is 50012032.

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 23021005 - 2³ = 23020997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328837 + ... + 328906.

It is an arithmetic number, because the mean of its divisors is an integer number (3946464).

Almost surely, 2^23021005 is an apocalyptic number.

It is an amenable number.

23021005 is a deficient number, since it is larger than the sum of its proper divisors (8550707).

23021005 is an equidigital number, since it uses as much as digits as its factorization.

23021005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657755.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 23021005 is about 4798.0209461819. The cubic root of 23021005 is about 284.4732447249.

Adding to 23021005 its reverse (50012032), we get a palindrome (73033037).

The spelling of 23021005 in words is "twenty-three million, twenty-one thousand, five".