123030604909 has 2 divisors, whose sum is σ = 123030604910. Its totient is φ = 123030604908.

The previous prime is 123030604849. The next prime is 123030605059. The reversal of 123030604909 is 909406030321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101328895684 + 21701709225 = 318322^2 + 147315^2 .

It is an emirp because it is prime and its reverse (909406030321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123030604909 - 2⁹ = 123030604397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123030604709) 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, 61515302454 + 61515302455.

It is an arithmetic number, because the mean of its divisors is an integer number (61515302455).

Almost surely, 2^123030604909 is an apocalyptic number.

It is an amenable number.

123030604909 is a deficient number, since it is larger than the sum of its proper divisors (1).

123030604909 is an equidigital number, since it uses as much as digits as its factorization.

123030604909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 123030604909 in words is "one hundred twenty-three billion, thirty million, six hundred four thousand, nine hundred nine".