20224321223 has 4 divisors (see below), whose sum is σ = 20921711640. Its totient is φ = 19526930808.

The previous prime is 20224321219. The next prime is 20224321231. The reversal of 20224321223 is 32212342202.

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 20224321223 - 2² = 20224321219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224321283) 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, 348695165 + ... + 348695222.

It is an arithmetic number, because the mean of its divisors is an integer number (5230427910).

Almost surely, 2^20224321223 is an apocalyptic number.

20224321223 is a deficient number, since it is larger than the sum of its proper divisors (697390417).

20224321223 is an equidigital number, since it uses as much as digits as its factorization.

20224321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697390416.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20224321223 its reverse (32212342202), we get a palindrome (52436663425).

The spelling of 20224321223 in words is "twenty billion, two hundred twenty-four million, three hundred twenty-one thousand, two hundred twenty-three".