512505420023 has 2 divisors, whose sum is σ = 512505420024. Its totient is φ = 512505420022.

The previous prime is 512505420001. The next prime is 512505420047. The reversal of 512505420023 is 320024505215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 512505420023 - 2¹⁴ = 512505403639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512505420083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256252710011 + 256252710012.

It is an arithmetic number, because the mean of its divisors is an integer number (256252710012).

Almost surely, 2^512505420023 is an apocalyptic number.

512505420023 is a deficient number, since it is larger than the sum of its proper divisors (1).

512505420023 is an equidigital number, since it uses as much as digits as its factorization.

512505420023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 512505420023 its reverse (320024505215), we get a palindrome (832529925238).

The spelling of 512505420023 in words is "five hundred twelve billion, five hundred five million, four hundred twenty thousand, twenty-three".