513050520811 has 2 divisors, whose sum is σ = 513050520812. Its totient is φ = 513050520810.

The previous prime is 513050520797. The next prime is 513050520839. The reversal of 513050520811 is 118025050315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513050520811 - 2⁵ = 513050520779 is a prime.

It is not a weakly prime, because it can be changed into another prime (513050520911) 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, 256525260405 + 256525260406.

It is an arithmetic number, because the mean of its divisors is an integer number (256525260406).

Almost surely, 2^513050520811 is an apocalyptic number.

513050520811 is a deficient number, since it is larger than the sum of its proper divisors (1).

513050520811 is an equidigital number, since it uses as much as digits as its factorization.

513050520811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 31.

The spelling of 513050520811 in words is "five hundred thirteen billion, fifty million, five hundred twenty thousand, eight hundred eleven".