104123721841 has 2 divisors, whose sum is σ = 104123721842. Its totient is φ = 104123721840.

The previous prime is 104123721781. The next prime is 104123721869. The reversal of 104123721841 is 148127321401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91918112400 + 12205609441 = 303180^2 + 110479^2 .

It is a cyclic number.

It is not a de Polignac number, because 104123721841 - 2⁹ = 104123721329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104123721797 and 104123721806.

It is not a weakly prime, because it can be changed into another prime (104123721881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52061860920 + 52061860921.

It is an arithmetic number, because the mean of its divisors is an integer number (52061860921).

Almost surely, 2^104123721841 is an apocalyptic number.

It is an amenable number.

104123721841 is a deficient number, since it is larger than the sum of its proper divisors (1).

104123721841 is an equidigital number, since it uses as much as digits as its factorization.

104123721841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 104123721841 in words is "one hundred four billion, one hundred twenty-three million, seven hundred twenty-one thousand, eight hundred forty-one".