20204344223 has 4 divisors (see below), whose sum is σ = 23090679120. Its totient is φ = 17318009328.

The previous prime is 20204344219. The next prime is 20204344249. The reversal of 20204344223 is 32244340202.

It is a happy number.

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 20204344223 - 2² = 20204344219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20204344192 and 20204344201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204344123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443167438 + ... + 1443167451.

It is an arithmetic number, because the mean of its divisors is an integer number (5772669780).

Almost surely, 2^20204344223 is an apocalyptic number.

20204344223 is a deficient number, since it is larger than the sum of its proper divisors (2886334897).

20204344223 is an equidigital number, since it uses as much as digits as its factorization.

20204344223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886334896.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 20204344223 its reverse (32244340202), we get a palindrome (52448684425).

The spelling of 20204344223 in words is "twenty billion, two hundred four million, three hundred forty-four thousand, two hundred twenty-three".