123242430502503 has 24 divisors (see below), whose sum is σ = 191726577352128. Its totient is φ = 75835114633152.

The previous prime is 123242430502487. The next prime is 123242430502561. The reversal of 123242430502503 is 305205034242321.

123242430502503 is a `hidden beast` number, since 1 + 2 + 32 + 42 + 4 + 30 + 50 + 2 + 503 = 666.

It is not a de Polignac number, because 123242430502503 - 2⁴ = 123242430502487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123242430502573) 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 in 23 ways as a sum of consecutive naturals, for example, 42916200 + ... + 45697757.

It is an arithmetic number, because the mean of its divisors is an integer number (7988607389672).

Almost surely, 2^{123242430502503} is an apocalyptic number.

123242430502503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123242430502503 is a deficient number, since it is larger than the sum of its proper divisors (68484146849625).

123242430502503 is a wasteful number, since it uses less digits than its factorization.

123242430502503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88625863 (or 88625860 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 123242430502503 its reverse (305205034242321), we get a palindrome (428447464744824).

The spelling of 123242430502503 in words is "one hundred twenty-three trillion, two hundred forty-two billion, four hundred thirty million, five hundred two thousand, five hundred three".