104531122009 has 2 divisors, whose sum is σ = 104531122010. Its totient is φ = 104531122008.

The previous prime is 104531121997. The next prime is 104531122043. The reversal of 104531122009 is 900221135401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92437281225 + 12093840784 = 304035^2 + 109972^2 .

It is a cyclic number.

It is not a de Polignac number, because 104531122009 - 2¹¹ = 104531119961 is a prime.

It is not a weakly prime, because it can be changed into another prime (104531122609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52265561004 + 52265561005.

It is an arithmetic number, because the mean of its divisors is an integer number (52265561005).

Almost surely, 2^104531122009 is an apocalyptic number.

It is an amenable number.

104531122009 is a deficient number, since it is larger than the sum of its proper divisors (1).

104531122009 is an equidigital number, since it uses as much as digits as its factorization.

104531122009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 104531122009 in words is "one hundred four billion, five hundred thirty-one million, one hundred twenty-two thousand, nine".