103242503 has 32 divisors (see below), whose sum is σ = 131604480. Its totient is φ = 78825600.

The previous prime is 103242487. The next prime is 103242509. The reversal of 103242503 is 305242301.

It is a happy number.

It is not a de Polignac number, because 103242503 - 2⁴ = 103242487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103242509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 431858 + ... + 432096.

It is an arithmetic number, because the mean of its divisors is an integer number (4112640).

Almost surely, 2^103242503 is an apocalyptic number.

103242503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

103242503 is a deficient number, since it is larger than the sum of its proper divisors (28361977).

103242503 is a wasteful number, since it uses less digits than its factorization.

103242503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 103242503 is about 10160.8318065009. The cubic root of 103242503 is about 469.1224049068.

Adding to 103242503 its reverse (305242301), we get a palindrome (408484804).

The spelling of 103242503 in words is "one hundred three million, two hundred forty-two thousand, five hundred three".