103942404809 has 2 divisors, whose sum is σ = 103942404810. Its totient is φ = 103942404808.

The previous prime is 103942404791. The next prime is 103942404827. The reversal of 103942404809 is 908404249301.

It is a balanced prime because it is at equal distance from previous prime (103942404791) and next prime (103942404827).

It can be written as a sum of positive squares in only one way, i.e., 103941760000 + 644809 = 322400^2 + 803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103942404809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103942404809.

It is not a weakly prime, because it can be changed into another prime (103942404869) 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, 51971202404 + 51971202405.

It is an arithmetic number, because the mean of its divisors is an integer number (51971202405).

Almost surely, 2^103942404809 is an apocalyptic number.

It is an amenable number.

103942404809 is a deficient number, since it is larger than the sum of its proper divisors (1).

103942404809 is an equidigital number, since it uses as much as digits as its factorization.

103942404809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 103942404809 in words is "one hundred three billion, nine hundred forty-two million, four hundred four thousand, eight hundred nine".