22000454923 has 2 divisors, whose sum is σ = 22000454924. Its totient is φ = 22000454922.

The previous prime is 22000454897. The next prime is 22000454963. The reversal of 22000454923 is 32945400022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22000454923 - 2²⁹ = 21463584011 is a prime.

It is not a weakly prime, because it can be changed into another prime (22000454963) 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 as a sum of consecutive naturals, namely, 11000227461 + 11000227462.

It is an arithmetic number, because the mean of its divisors is an integer number (11000227462).

Almost surely, 2^22000454923 is an apocalyptic number.

22000454923 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000454923 is an equidigital number, since it uses as much as digits as its factorization.

22000454923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 22000454923 its reverse (32945400022), we get a palindrome (54945854945).

The spelling of 22000454923 in words is "twenty-two billion, four hundred fifty-four thousand, nine hundred twenty-three".