20303041273 has 2 divisors, whose sum is σ = 20303041274. Its totient is φ = 20303041272.

The previous prime is 20303041271. The next prime is 20303041331. The reversal of 20303041273 is 37214030302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10930284304 + 9372756969 = 104548^2 + 96813^2 .

It is a cyclic number.

It is not a de Polignac number, because 20303041273 - 2¹ = 20303041271 is a prime.

Together with 20303041271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20303041271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151520636 + 10151520637.

It is an arithmetic number, because the mean of its divisors is an integer number (10151520637).

Almost surely, 2^20303041273 is an apocalyptic number.

It is an amenable number.

20303041273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20303041273 is an equidigital number, since it uses as much as digits as its factorization.

20303041273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 25.

Adding to 20303041273 its reverse (37214030302), we get a palindrome (57517071575).

The spelling of 20303041273 in words is "twenty billion, three hundred three million, forty-one thousand, two hundred seventy-three".