503491331100323 has 8 divisors (see below), whose sum is σ = 504048276798000. Its totient is φ = 502934500147968.

The previous prime is 503491331100283. The next prime is 503491331100343. The reversal of 503491331100323 is 323001133194305.

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 503491331100323 - 2¹⁰ = 503491331099299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503491331100343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19904186 + ... + 37458767.

It is an arithmetic number, because the mean of its divisors is an integer number (63006034599750).

Almost surely, 2^{503491331100323} is an apocalyptic number.

503491331100323 is a deficient number, since it is larger than the sum of its proper divisors (556945697677).

503491331100323 is a wasteful number, since it uses less digits than its factorization.

503491331100323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57372661.

The product of its (nonzero) digits is 87480, while the sum is 38.

Adding to 503491331100323 its reverse (323001133194305), we get a palindrome (826492464294628).

The spelling of 503491331100323 in words is "five hundred three trillion, four hundred ninety-one billion, three hundred thirty-one million, one hundred thousand, three hundred twenty-three".