20012320422223 has 2 divisors, whose sum is σ = 20012320422224. Its totient is φ = 20012320422222.

The previous prime is 20012320422179. The next prime is 20012320422257. The reversal of 20012320422223 is 32222402321002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012320422223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012320422293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006160211111 + 10006160211112.

It is an arithmetic number, because the mean of its divisors is an integer number (10006160211112).

Almost surely, 2^{20012320422223} is an apocalyptic number.

20012320422223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012320422223 is an equidigital number, since it uses as much as digits as its factorization.

20012320422223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20012320422223 its reverse (32222402321002), we get a palindrome (52234722743225).

The spelling of 20012320422223 in words is "twenty trillion, twelve billion, three hundred twenty million, four hundred twenty-two thousand, two hundred twenty-three".