20002224423 has 4 divisors (see below), whose sum is σ = 26669632568. Its totient is φ = 13334816280.

The previous prime is 20002224401. The next prime is 20002224443. The reversal of 20002224423 is 32442220002.

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

It is not a de Polignac number, because 20002224423 - 2¹⁶ = 20002158887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20002224423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002224443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333704068 + ... + 3333704073.

It is an arithmetic number, because the mean of its divisors is an integer number (6667408142).

Almost surely, 2^20002224423 is an apocalyptic number.

20002224423 is a deficient number, since it is larger than the sum of its proper divisors (6667408145).

20002224423 is an equidigital number, since it uses as much as digits as its factorization.

20002224423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667408144.

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 20002224423 its reverse (32442220002), we get a palindrome (52444444425).

The spelling of 20002224423 in words is "twenty billion, two million, two hundred twenty-four thousand, four hundred twenty-three".