103305680857 has 2 divisors, whose sum is σ = 103305680858. Its totient is φ = 103305680856.

The previous prime is 103305680851. The next prime is 103305680887. The reversal of 103305680857 is 758086503301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73742661136 + 29563019721 = 271556^2 + 171939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103305680857 is a prime.

It is not a weakly prime, because it can be changed into another prime (103305680851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51652840428 + 51652840429.

It is an arithmetic number, because the mean of its divisors is an integer number (51652840429).

Almost surely, 2^103305680857 is an apocalyptic number.

It is an amenable number.

103305680857 is a deficient number, since it is larger than the sum of its proper divisors (1).

103305680857 is an equidigital number, since it uses as much as digits as its factorization.

103305680857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 103305680857 in words is "one hundred three billion, three hundred five million, six hundred eighty thousand, eight hundred fifty-seven".