513335404043311 has 2 divisors, whose sum is σ = 513335404043312. Its totient is φ = 513335404043310.

The previous prime is 513335404043309. The next prime is 513335404043393. The reversal of 513335404043311 is 113340404533315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513335404043311 - 2¹ = 513335404043309 is a prime.

Together with 513335404043309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513335404043411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256667702021655 + 256667702021656.

It is an arithmetic number, because the mean of its divisors is an integer number (256667702021656).

Almost surely, 2^{513335404043311} is an apocalyptic number.

513335404043311 is a deficient number, since it is larger than the sum of its proper divisors (1).

513335404043311 is an equidigital number, since it uses as much as digits as its factorization.

513335404043311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 40.

Adding to 513335404043311 its reverse (113340404533315), we get a palindrome (626675808576626).

The spelling of 513335404043311 in words is "five hundred thirteen trillion, three hundred thirty-five billion, four hundred four million, forty-three thousand, three hundred eleven".