13502018223 has 14 divisors (see below), whose sum is σ = 20243767784. Its totient is φ = 9001344996.

The previous prime is 13502018219. The next prime is 13502018261. The reversal of 13502018223 is 32281020531.

13502018223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13502018223 - 2² = 13502018219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13502018213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 9259915 + ... + 9261372.

Almost surely, 2^13502018223 is an apocalyptic number.

13502018223 is a deficient number, since it is larger than the sum of its proper divisors (6741749561).

13502018223 is an frugal number, since it uses more digits than its factorization.

13502018223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18521305 (or 18521290 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 13502018223 its reverse (32281020531), we get a palindrome (45783038754).

The spelling of 13502018223 in words is "thirteen billion, five hundred two million, eighteen thousand, two hundred twenty-three".