20344551334223 has 12 divisors (see below), whose sum is σ = 20544333401088. Its totient is φ = 20146690267200.

The previous prime is 20344551334193. The next prime is 20344551334241. The reversal of 20344551334223 is 32243315544302.

It is a de Polignac number, because none of the positive numbers 2^k-20344551334223 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 (20344551334123) 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 11 ways as a sum of consecutive naturals, for example, 20922290 + ... + 21873072.

It is an arithmetic number, because the mean of its divisors is an integer number (1712027783424).

Almost surely, 2^{20344551334223} is an apocalyptic number.

20344551334223 is a deficient number, since it is larger than the sum of its proper divisors (199782066865).

20344551334223 is an equidigital number, since it uses as much as digits as its factorization.

20344551334223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952802 (or 952693 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 41.

Adding to 20344551334223 its reverse (32243315544302), we get a palindrome (52587866878525).

The spelling of 20344551334223 in words is "twenty trillion, three hundred forty-four billion, five hundred fifty-one million, three hundred thirty-four thousand, two hundred twenty-three".