518230936331 has 2 divisors, whose sum is σ = 518230936332. Its totient is φ = 518230936330.

The previous prime is 518230936309. The next prime is 518230936337. The reversal of 518230936331 is 133639032815.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-518230936331 is a prime.

It is a super-2 number, since 2×518230936331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (518230936337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259115468165 + 259115468166.

It is an arithmetic number, because the mean of its divisors is an integer number (259115468166).

Almost surely, 2^518230936331 is an apocalyptic number.

518230936331 is a deficient number, since it is larger than the sum of its proper divisors (1).

518230936331 is an equidigital number, since it uses as much as digits as its factorization.

518230936331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 518230936331 in words is "five hundred eighteen billion, two hundred thirty million, nine hundred thirty-six thousand, three hundred thirty-one".