123545510903 has 2 divisors, whose sum is σ = 123545510904. Its totient is φ = 123545510902.

The previous prime is 123545510867. The next prime is 123545510911. The reversal of 123545510903 is 309015545321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123545510903 - 2¹² = 123545506807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123545510003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61772755451 + 61772755452.

It is an arithmetic number, because the mean of its divisors is an integer number (61772755452).

Almost surely, 2^123545510903 is an apocalyptic number.

123545510903 is a deficient number, since it is larger than the sum of its proper divisors (1).

123545510903 is an equidigital number, since it uses as much as digits as its factorization.

123545510903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 123545510903 in words is "one hundred twenty-three billion, five hundred forty-five million, five hundred ten thousand, nine hundred three".