23221003 has 8 divisors (see below), whose sum is σ = 25048800. Its totient is φ = 21399168.

The previous prime is 23220991. The next prime is 23221019. The reversal of 23221003 is 30012232.

It is a happy number.

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 23221003 - 2⁵ = 23220971 is a prime.

It is a super-3 number, since 3×23221003³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9843 + ... + 11971.

It is an arithmetic number, because the mean of its divisors is an integer number (3131100).

Almost surely, 2^23221003 is an apocalyptic number.

23221003 is a deficient number, since it is larger than the sum of its proper divisors (1827797).

23221003 is a wasteful number, since it uses less digits than its factorization.

23221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981.

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

The square root of 23221003 is about 4818.8175935596. The cubic root of 23221003 is about 285.2946700908.

Adding to 23221003 its reverse (30012232), we get a palindrome (53233235).

The spelling of 23221003 in words is "twenty-three million, two hundred twenty-one thousand, three".