23002321 has 4 divisors (see below), whose sum is σ = 23122944. Its totient is φ = 22881700.

The previous prime is 23002267. The next prime is 23002327. The reversal of 23002321 is 12320032.

It is a happy number.

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 23002321 - 2⁹ = 23001809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23002327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60025 + ... + 60406.

It is an arithmetic number, because the mean of its divisors is an integer number (5780736).

Almost surely, 2^23002321 is an apocalyptic number.

It is an amenable number.

23002321 is a deficient number, since it is larger than the sum of its proper divisors (120623).

23002321 is a wasteful number, since it uses less digits than its factorization.

23002321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120622.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23002321 is about 4796.0734981858. The cubic root of 23002321 is about 284.3962637725.

Adding to 23002321 its reverse (12320032), we get a palindrome (35322353).

The spelling of 23002321 in words is "twenty-three million, two thousand, three hundred twenty-one".