511313303313103 has 2 divisors, whose sum is σ = 511313303313104. Its totient is φ = 511313303313102.

The previous prime is 511313303313091. The next prime is 511313303313143. The reversal of 511313303313103 is 301313303313115.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511313303313103 is a prime.

It is a super-2 number, since 2×511313303313103² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511313303313143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255656651656551 + 255656651656552.

It is an arithmetic number, because the mean of its divisors is an integer number (255656651656552).

Almost surely, 2^{511313303313103} is an apocalyptic number.

511313303313103 is a deficient number, since it is larger than the sum of its proper divisors (1).

511313303313103 is an equidigital number, since it uses as much as digits as its factorization.

511313303313103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10935, while the sum is 31.

Adding to 511313303313103 its reverse (301313303313115), we get a palindrome (812626606626218).

The spelling of 511313303313103 in words is "five hundred eleven trillion, three hundred thirteen billion, three hundred three million, three hundred thirteen thousand, one hundred three".