513311250323 has 2 divisors, whose sum is σ = 513311250324. Its totient is φ = 513311250322.

The previous prime is 513311250251. The next prime is 513311250337. The reversal of 513311250323 is 323052113315.

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-513311250323 is a prime.

It is not a weakly prime, because it can be changed into another prime (513311210323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256655625161 + 256655625162.

It is an arithmetic number, because the mean of its divisors is an integer number (256655625162).

Almost surely, 2^513311250323 is an apocalyptic number.

513311250323 is a deficient number, since it is larger than the sum of its proper divisors (1).

513311250323 is an equidigital number, since it uses as much as digits as its factorization.

513311250323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 513311250323 its reverse (323052113315), we get a palindrome (836363363638).

The spelling of 513311250323 in words is "five hundred thirteen billion, three hundred eleven million, two hundred fifty thousand, three hundred twenty-three".