123030604999 has 4 divisors (see below), whose sum is σ = 123169310064. Its totient is φ = 122891899936.

The previous prime is 123030604909. The next prime is 123030605059. The reversal of 123030604999 is 999406030321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999406030321 = 706897 ⋅1413793.

It is a cyclic number.

It is not a de Polignac number, because 123030604999 - 2¹¹ = 123030602951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030604909) 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 in 3 ways as a sum of consecutive naturals, for example, 69351202 + ... + 69352975.

It is an arithmetic number, because the mean of its divisors is an integer number (30792327516).

Almost surely, 2^123030604999 is an apocalyptic number.

123030604999 is a deficient number, since it is larger than the sum of its proper divisors (138705065).

123030604999 is an equidigital number, since it uses as much as digits as its factorization.

123030604999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138705064.

The product of its (nonzero) digits is 314928, while the sum is 46.

The spelling of 123030604999 in words is "one hundred twenty-three billion, thirty million, six hundred four thousand, nine hundred ninety-nine".