23224321 has 4 divisors (see below), whose sum is σ = 23251392. Its totient is φ = 23197252.

The previous prime is 23224309. The next prime is 23224351. The reversal of 23224321 is 12342232.

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 23224321 - 2¹⁹ = 22700033 is a prime.

It is a super-2 number, since 2×23224321² = 1078738171822082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23224351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12205 + ... + 13978.

It is an arithmetic number, because the mean of its divisors is an integer number (5812848).

It is a Proth number, since it is equal to 2835 ⋅ 2¹³ + 1 and 2835 < 2¹³.

Almost surely, 2^23224321 is an apocalyptic number.

It is an amenable number.

23224321 is a deficient number, since it is larger than the sum of its proper divisors (27071).

23224321 is an equidigital number, since it uses as much as digits as its factorization.

23224321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27070.

The product of its digits is 576, while the sum is 19.

The square root of 23224321 is about 4819.1618565888. The cubic root of 23224321 is about 285.3082578276.

Adding to 23224321 its reverse (12342232), we get a palindrome (35566553).

The spelling of 23224321 in words is "twenty-three million, two hundred twenty-four thousand, three hundred twenty-one".