13425316503 has 4 divisors (see below), whose sum is σ = 17900422008. Its totient is φ = 8950211000.

The previous prime is 13425316501. The next prime is 13425316561. The reversal of 13425316503 is 30561352431.

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

It is a cyclic number.

It is not a de Polignac number, because 13425316503 - 2¹ = 13425316501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13425316501) 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, 2237552748 + ... + 2237552753.

It is an arithmetic number, because the mean of its divisors is an integer number (4475105502).

Almost surely, 2^13425316503 is an apocalyptic number.

13425316503 is a deficient number, since it is larger than the sum of its proper divisors (4475105505).

13425316503 is an equidigital number, since it uses as much as digits as its factorization.

13425316503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475105504.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 13425316503 its reverse (30561352431), we get a palindrome (43986668934).

The spelling of 13425316503 in words is "thirteen billion, four hundred twenty-five million, three hundred sixteen thousand, five hundred three".