505321103 has 8 divisors (see below), whose sum is σ = 581919360. Its totient is φ = 429825240.

The previous prime is 505321087. The next prime is 505321127. The reversal of 505321103 is 301123505.

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

It is a cyclic number.

It is not a de Polignac number, because 505321103 - 2⁴ = 505321087 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 (505321163) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 274613 + ... + 276446.

It is an arithmetic number, because the mean of its divisors is an integer number (72739920).

Almost surely, 2^505321103 is an apocalyptic number.

505321103 is a deficient number, since it is larger than the sum of its proper divisors (76598257).

505321103 is a wasteful number, since it uses less digits than its factorization.

505321103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551197.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 505321103 is about 22479.3483668900. The cubic root of 505321103 is about 796.5061714781.

Adding to 505321103 its reverse (301123505), we get a palindrome (806444608).

The spelling of 505321103 in words is "five hundred five million, three hundred twenty-one thousand, one hundred three".