23022321 has 16 divisors (see below), whose sum is σ = 35289984. Its totient is φ = 13077504.

The previous prime is 23022313. The next prime is 23022341. The reversal of 23022321 is 12322032.

It is not a de Polignac number, because 23022321 - 2³ = 23022313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23022321.

It is not an unprimeable number, because it can be changed into a prime (23022341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465 + ... + 6801.

It is an arithmetic number, because the mean of its divisors is an integer number (2205624).

Almost surely, 2^23022321 is an apocalyptic number.

23022321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23022321 is a deficient number, since it is larger than the sum of its proper divisors (12267663).

23022321 is a wasteful number, since it uses less digits than its factorization.

23022321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6520.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23022321 is about 4798.1580840985. The cubic root of 23022321 is about 284.4786652768.

Adding to 23022321 its reverse (12322032), we get a palindrome (35344353).

The spelling of 23022321 in words is "twenty-three million, twenty-two thousand, three hundred twenty-one".