506123140013 has 2 divisors, whose sum is σ = 506123140014. Its totient is φ = 506123140012.

The previous prime is 506123139961. The next prime is 506123140037. The reversal of 506123140013 is 310041321605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485638946884 + 20484193129 = 696878^2 + 143123^2 .

It is a cyclic number.

It is not a de Polignac number, because 506123140013 - 2⁸ = 506123139757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506123140043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253061570006 + 253061570007.

It is an arithmetic number, because the mean of its divisors is an integer number (253061570007).

Almost surely, 2^506123140013 is an apocalyptic number.

It is an amenable number.

506123140013 is a deficient number, since it is larger than the sum of its proper divisors (1).

506123140013 is an equidigital number, since it uses as much as digits as its factorization.

506123140013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 506123140013 its reverse (310041321605), we get a palindrome (816164461618).

The spelling of 506123140013 in words is "five hundred six billion, one hundred twenty-three million, one hundred forty thousand, thirteen".