20504410051223 has 8 divisors (see below), whose sum is σ = 24812059221792. Its totient is φ = 16541372814336.

The previous prime is 20504410051193. The next prime is 20504410051247. The reversal of 20504410051223 is 32215001440502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20504410051223 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 (20504410059223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86152983290 + ... + 86152983527.

It is an arithmetic number, because the mean of its divisors is an integer number (3101507402724).

Almost surely, 2^{20504410051223} is an apocalyptic number.

20504410051223 is a deficient number, since it is larger than the sum of its proper divisors (4307649170569).

20504410051223 is a wasteful number, since it uses less digits than its factorization.

20504410051223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172305966841.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 20504410051223 its reverse (32215001440502), we get a palindrome (52719411491725).

The spelling of 20504410051223 in words is "twenty trillion, five hundred four billion, four hundred ten million, fifty-one thousand, two hundred twenty-three".