20001230002223 has 4 divisors (see below), whose sum is σ = 20489064880368. Its totient is φ = 19513395124080.

The previous prime is 20001230002199. The next prime is 20001230002289. The reversal of 20001230002223 is 32220003210002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001230002223 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 (20001238002223) 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, 243917439011 + ... + 243917439092.

It is an arithmetic number, because the mean of its divisors is an integer number (5122266220092).

Almost surely, 2^{20001230002223} is an apocalyptic number.

20001230002223 is a deficient number, since it is larger than the sum of its proper divisors (487834878145).

20001230002223 is an equidigital number, since it uses as much as digits as its factorization.

20001230002223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487834878144.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20001230002223 its reverse (32220003210002), we get a palindrome (52221233212225).

The spelling of 20001230002223 in words is "twenty trillion, one billion, two hundred thirty million, two thousand, two hundred twenty-three".