505201342813 has 2 divisors, whose sum is σ = 505201342814. Its totient is φ = 505201342812.

The previous prime is 505201342769. The next prime is 505201342819. The reversal of 505201342813 is 318243102505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317242677049 + 187958665764 = 563243^2 + 433542^2 .

It is a cyclic number.

It is not a de Polignac number, because 505201342813 - 2³³ = 496611408221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505201342819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252600671406 + 252600671407.

It is an arithmetic number, because the mean of its divisors is an integer number (252600671407).

Almost surely, 2^505201342813 is an apocalyptic number.

It is an amenable number.

505201342813 is a deficient number, since it is larger than the sum of its proper divisors (1).

505201342813 is an equidigital number, since it uses as much as digits as its factorization.

505201342813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 505201342813 in words is "five hundred five billion, two hundred one million, three hundred forty-two thousand, eight hundred thirteen".