20003226305 has 4 divisors (see below), whose sum is σ = 24003871572. Its totient is φ = 16002581040.

The previous prime is 20003226289. The next prime is 20003226359. The reversal of 20003226305 is 50362230002.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3692871361 + 16310354944 = 60769^2 + 127712^2 .

It is not a de Polignac number, because 20003226305 - 2⁴ = 20003226289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000322626 + ... + 2000322635.

It is an arithmetic number, because the mean of its divisors is an integer number (6000967893).

Almost surely, 2^20003226305 is an apocalyptic number.

It is an amenable number.

20003226305 is a deficient number, since it is larger than the sum of its proper divisors (4000645267).

20003226305 is an equidigital number, since it uses as much as digits as its factorization.

20003226305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000645266.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20003226305 its reverse (50362230002), we get a palindrome (70365456307).

The spelling of 20003226305 in words is "twenty billion, three million, two hundred twenty-six thousand, three hundred five".