104423155261 has 2 divisors, whose sum is σ = 104423155262. Its totient is φ = 104423155260.

The previous prime is 104423155229. The next prime is 104423155321. The reversal of 104423155261 is 162551324401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84328675236 + 20094480025 = 290394^2 + 141755^2 .

It is a cyclic number.

It is not a de Polignac number, because 104423155261 - 2⁵ = 104423155229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104423155561) 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, 52211577630 + 52211577631.

It is an arithmetic number, because the mean of its divisors is an integer number (52211577631).

Almost surely, 2^104423155261 is an apocalyptic number.

It is an amenable number.

104423155261 is a deficient number, since it is larger than the sum of its proper divisors (1).

104423155261 is an equidigital number, since it uses as much as digits as its factorization.

104423155261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 104423155261 its reverse (162551324401), we get a palindrome (266974479662).

The spelling of 104423155261 in words is "one hundred four billion, four hundred twenty-three million, one hundred fifty-five thousand, two hundred sixty-one".