4731320565503 has 4 divisors (see below), whose sum is σ = 5407223503440. Its totient is φ = 4055417627568.

The previous prime is 4731320565449. The next prime is 4731320565529. The reversal of 4731320565503 is 3055650231374.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4731320565503 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 (4731320565583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337951468958 + ... + 337951468971.

It is an arithmetic number, because the mean of its divisors is an integer number (1351805875860).

Almost surely, 2^{4731320565503} is an apocalyptic number.

4731320565503 is a deficient number, since it is larger than the sum of its proper divisors (675902937937).

4731320565503 is an equidigital number, since it uses as much as digits as its factorization.

4731320565503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675902937936.

The product of its (nonzero) digits is 1134000, while the sum is 44.

Adding to 4731320565503 its reverse (3055650231374), we get a palindrome (7786970796877).

The spelling of 4731320565503 in words is "four trillion, seven hundred thirty-one billion, three hundred twenty million, five hundred sixty-five thousand, five hundred three".