230311305543013 has 2 divisors, whose sum is σ = 230311305543014. Its totient is φ = 230311305543012.

The previous prime is 230311305542957. The next prime is 230311305543071. The reversal of 230311305543013 is 310345503113032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133180070494689 + 97131235048324 = 11540367^2 + 9855518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230311305543013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230311305543013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230311305543083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115155652771506 + 115155652771507.

It is an arithmetic number, because the mean of its divisors is an integer number (115155652771507).

Almost surely, 2^{230311305543013} is an apocalyptic number.

It is an amenable number.

230311305543013 is a deficient number, since it is larger than the sum of its proper divisors (1).

230311305543013 is an equidigital number, since it uses as much as digits as its factorization.

230311305543013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 34.

Adding to 230311305543013 its reverse (310345503113032), we get a palindrome (540656808656045).

The spelling of 230311305543013 in words is "two hundred thirty trillion, three hundred eleven billion, three hundred five million, five hundred forty-three thousand, thirteen".