503243342305 has 16 divisors (see below), whose sum is σ = 661415969088. Its totient is φ = 364537000000.

The previous prime is 503243342279. The next prime is 503243342323.

503243342305 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 503243342305 - 2¹⁵ = 503243309537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 18213046 + ... + 18240655.

It is an arithmetic number, because the mean of its divisors is an integer number (41338498068).

Almost surely, 2^503243342305 is an apocalyptic number.

503243342305 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

503243342305 is a deficient number, since it is larger than the sum of its proper divisors (158172626783).

503243342305 is a wasteful number, since it uses less digits than its factorization.

503243342305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36453968.

The product of its (nonzero) digits is 129600, while the sum is 34.

It can be divided in two parts, 503243 and 342305, that added together give a palindrome (845548).

The spelling of 503243342305 in words is "five hundred three billion, two hundred forty-three million, three hundred forty-two thousand, three hundred five".