20444340010223 has 4 divisors (see below), whose sum is σ = 20445344518368. Its totient is φ = 20443335502080.

The previous prime is 20444340010219. The next prime is 20444340010253. The reversal of 20444340010223 is 32201004344402.

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 20444340010223 - 2² = 20444340010219 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 (20444340010253) 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, 502223543 + ... + 502264248.

It is an arithmetic number, because the mean of its divisors is an integer number (5111336129592).

Almost surely, 2^{20444340010223} is an apocalyptic number.

20444340010223 is a deficient number, since it is larger than the sum of its proper divisors (1004508145).

20444340010223 is a wasteful number, since it uses less digits than its factorization.

20444340010223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004508144.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 20444340010223 its reverse (32201004344402), we get a palindrome (52645344354625).

The spelling of 20444340010223 in words is "twenty trillion, four hundred forty-four billion, three hundred forty million, ten thousand, two hundred twenty-three".