123242503 has 8 divisors (see below), whose sum is σ = 130710240. Its totient is φ = 115799040.

The previous prime is 123242479. The next prime is 123242513. The reversal of 123242503 is 305242321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123242503 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 (123242513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4983 + ... + 16471.

It is an arithmetic number, because the mean of its divisors is an integer number (16338780).

Almost surely, 2^123242503 is an apocalyptic number.

123242503 is a deficient number, since it is larger than the sum of its proper divisors (7467737).

123242503 is a wasteful number, since it uses less digits than its factorization.

123242503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12137.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 123242503 is about 11101.4640025539. The cubic root of 123242503 is about 497.6456016850.

Adding to 123242503 its reverse (305242321), we get a palindrome (428484824).

The spelling of 123242503 in words is "one hundred twenty-three million, two hundred forty-two thousand, five hundred three".