23221000203 has 4 divisors (see below), whose sum is σ = 30961333608. Its totient is φ = 15480666800.

The previous prime is 23221000181. The next prime is 23221000207. The reversal of 23221000203 is 30200012232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23221000203 - 2⁶ = 23221000139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23221000207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3870166698 + ... + 3870166703.

It is an arithmetic number, because the mean of its divisors is an integer number (7740333402).

Almost surely, 2^23221000203 is an apocalyptic number.

23221000203 is a deficient number, since it is larger than the sum of its proper divisors (7740333405).

23221000203 is an equidigital number, since it uses as much as digits as its factorization.

23221000203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7740333404.

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

Adding to 23221000203 its reverse (30200012232), we get a palindrome (53421012435).

The spelling of 23221000203 in words is "twenty-three billion, two hundred twenty-one million, two hundred three", and thus it is an aban number.