20004244703273 has 4 divisors (see below), whose sum is σ = 20010031297620. Its totient is φ = 19998458108928.

The previous prime is 20004244703269. The next prime is 20004244703293. The reversal of 20004244703273 is 37230744240002.

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 3823151162944 + 16181093540329 = 1955288^2 + 4022573^2 .

It is a cyclic number.

It is not a de Polignac number, because 20004244703273 - 2² = 20004244703269 is a prime.

It is a super-2 number, since 2×20004244703273² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20004244703293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2893291988 + ... + 2893298901.

It is an arithmetic number, because the mean of its divisors is an integer number (5002507824405).

Almost surely, 2^{20004244703273} is an apocalyptic number.

It is an amenable number.

20004244703273 is a deficient number, since it is larger than the sum of its proper divisors (5786594347).

20004244703273 is an equidigital number, since it uses as much as digits as its factorization.

20004244703273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786594346.

The product of its (nonzero) digits is 225792, while the sum is 38.

Adding to 20004244703273 its reverse (37230744240002), we get a palindrome (57234988943275).

The spelling of 20004244703273 in words is "twenty trillion, four billion, two hundred forty-four million, seven hundred three thousand, two hundred seventy-three".