513513342611 has 2 divisors, whose sum is σ = 513513342612. Its totient is φ = 513513342610.

The previous prime is 513513342607. The next prime is 513513342613. The reversal of 513513342611 is 116243315315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513513342611 - 2² = 513513342607 is a prime.

Together with 513513342613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (513513342613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256756671305 + 256756671306.

It is an arithmetic number, because the mean of its divisors is an integer number (256756671306).

Almost surely, 2^513513342611 is an apocalyptic number.

513513342611 is a deficient number, since it is larger than the sum of its proper divisors (1).

513513342611 is an equidigital number, since it uses as much as digits as its factorization.

513513342611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 35.

Adding to 513513342611 its reverse (116243315315), we get a palindrome (629756657926).

The spelling of 513513342611 in words is "five hundred thirteen billion, five hundred thirteen million, three hundred forty-two thousand, six hundred eleven".