104303807561 has 2 divisors, whose sum is σ = 104303807562. Its totient is φ = 104303807560.

The previous prime is 104303807537. The next prime is 104303807567. The reversal of 104303807561 is 165708303401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80439737161 + 23864070400 = 283619^2 + 154480^2 .

It is a cyclic number.

It is not a de Polignac number, because 104303807561 - 2⁶ = 104303807497 is a prime.

It is not a weakly prime, because it can be changed into another prime (104303807567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52151903780 + 52151903781.

It is an arithmetic number, because the mean of its divisors is an integer number (52151903781).

Almost surely, 2^104303807561 is an apocalyptic number.

It is an amenable number.

104303807561 is a deficient number, since it is larger than the sum of its proper divisors (1).

104303807561 is an equidigital number, since it uses as much as digits as its factorization.

104303807561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 104303807561 in words is "one hundred four billion, three hundred three million, eight hundred seven thousand, five hundred sixty-one".