123008903 has 2 divisors, whose sum is σ = 123008904. Its totient is φ = 123008902.

The previous prime is 123008891. The next prime is 123008909. The reversal of 123008903 is 309800321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123008903 - 2⁸ = 123008647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123008909) 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, 61504451 + 61504452.

It is an arithmetic number, because the mean of its divisors is an integer number (61504452).

Almost surely, 2^123008903 is an apocalyptic number.

123008903 is a deficient number, since it is larger than the sum of its proper divisors (1).

123008903 is an equidigital number, since it uses as much as digits as its factorization.

123008903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 123008903 is about 11090.9378773844. The cubic root of 123008903 is about 497.3309820371.

The spelling of 123008903 in words is "one hundred twenty-three million, eight thousand, nine hundred three".