13325434544503 has 4 divisors (see below), whose sum is σ = 14026773204760. Its totient is φ = 12624095884248.

The previous prime is 13325434544437. The next prime is 13325434544507. The reversal of 13325434544503 is 30544543452331.

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-13325434544503 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 (13325434544507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350669330100 + ... + 350669330137.

It is an arithmetic number, because the mean of its divisors is an integer number (3506693301190).

Almost surely, 2^{13325434544503} is an apocalyptic number.

13325434544503 is a deficient number, since it is larger than the sum of its proper divisors (701338660257).

13325434544503 is an equidigital number, since it uses as much as digits as its factorization.

13325434544503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701338660256.

The product of its (nonzero) digits is 5184000, while the sum is 46.

Adding to 13325434544503 its reverse (30544543452331), we get a palindrome (43869977996834).

The spelling of 13325434544503 in words is "thirteen trillion, three hundred twenty-five billion, four hundred thirty-four million, five hundred forty-four thousand, five hundred three".