680550111113 has 2 divisors, whose sum is σ = 680550111114. Its totient is φ = 680550111112.

The previous prime is 680550111103. The next prime is 680550111167. The reversal of 680550111113 is 311111055086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 370598477824 + 309951633289 = 608768^2 + 556733^2 .

It is a cyclic number.

It is not a de Polignac number, because 680550111113 - 2⁴ = 680550111097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 680550111113.

It is not a weakly prime, because it can be changed into another prime (680550111103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340275055556 + 340275055557.

It is an arithmetic number, because the mean of its divisors is an integer number (340275055557).

Almost surely, 2^680550111113 is an apocalyptic number.

It is an amenable number.

680550111113 is a deficient number, since it is larger than the sum of its proper divisors (1).

680550111113 is an equidigital number, since it uses as much as digits as its factorization.

680550111113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 32.

Adding to 680550111113 its reverse (311111055086), we get a palindrome (991661166199).

The spelling of 680550111113 in words is "six hundred eighty billion, five hundred fifty million, one hundred eleven thousand, one hundred thirteen".