13223105544 has 48 divisors (see below), whose sum is σ = 36336227760. Its totient is φ = 4007000800.

The previous prime is 13223105527. The next prime is 13223105549. The reversal of 13223105544 is 44550132231.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13223105549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2273802 + ... + 2279609.

It is an arithmetic number, because the mean of its divisors is an integer number (757004745).

Almost surely, 2^13223105544 is an apocalyptic number.

It is an amenable number.

13223105544 is an abundant number, since it is smaller than the sum of its proper divisors (23113122216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13223105544 is a wasteful number, since it uses less digits than its factorization.

13223105544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4553442 (or 4553427 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 13223105544 its reverse (44550132231), we get a palindrome (57773237775).

The spelling of 13223105544 in words is "thirteen billion, two hundred twenty-three million, one hundred five thousand, five hundred forty-four".