13505326303 has 32 divisors (see below), whose sum is σ = 17363203200. Its totient is φ = 10234957824.

The previous prime is 13505326291. The next prime is 13505326313. The reversal of 13505326303 is 30362350531.

It is not a de Polignac number, because 13505326303 - 2¹³ = 13505318111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13505326313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74803 + ... + 180571.

It is an arithmetic number, because the mean of its divisors is an integer number (542600100).

Almost surely, 2^13505326303 is an apocalyptic number.

13505326303 is a deficient number, since it is larger than the sum of its proper divisors (3857876897).

13505326303 is a wasteful number, since it uses less digits than its factorization.

13505326303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105859.

The product of its (nonzero) digits is 24300, while the sum is 31.

Adding to 13505326303 its reverse (30362350531), we get a palindrome (43867676834).

The spelling of 13505326303 in words is "thirteen billion, five hundred five million, three hundred twenty-six thousand, three hundred three".