513424424323 has 2 divisors, whose sum is σ = 513424424324. Its totient is φ = 513424424322.

The previous prime is 513424424273. The next prime is 513424424327. The reversal of 513424424323 is 323424424315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513424424323 is a prime.

It is not a weakly prime, because it can be changed into another prime (513424424327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256712212161 + 256712212162.

It is an arithmetic number, because the mean of its divisors is an integer number (256712212162).

Almost surely, 2^513424424323 is an apocalyptic number.

513424424323 is a deficient number, since it is larger than the sum of its proper divisors (1).

513424424323 is an equidigital number, since it uses as much as digits as its factorization.

513424424323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 37.

Adding to 513424424323 its reverse (323424424315), we get a palindrome (836848848638).

The spelling of 513424424323 in words is "five hundred thirteen billion, four hundred twenty-four million, four hundred twenty-four thousand, three hundred twenty-three".