20504051443093 has 2 divisors, whose sum is σ = 20504051443094. Its totient is φ = 20504051443092.

The previous prime is 20504051443033. The next prime is 20504051443147. The reversal of 20504051443093 is 39034415040502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20465644066609 + 38407376484 = 4523897^2 + 195978^2 .

It is a cyclic number.

It is not a de Polignac number, because 20504051443093 - 2³⁷ = 20366612489621 is a prime.

It is a super-2 number, since 2×20504051443093² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20504051443033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10252025721546 + 10252025721547.

It is an arithmetic number, because the mean of its divisors is an integer number (10252025721547).

Almost surely, 2^{20504051443093} is an apocalyptic number.

It is an amenable number.

20504051443093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20504051443093 is an equidigital number, since it uses as much as digits as its factorization.

20504051443093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 20504051443093 its reverse (39034415040502), we get a palindrome (59538466483595).

The spelling of 20504051443093 in words is "twenty trillion, five hundred four billion, fifty-one million, four hundred forty-three thousand, ninety-three".