13103311044 has 48 divisors (see below), whose sum is σ = 31338010368. Its totient is φ = 4259355648.

The previous prime is 13103311037. The next prime is 13103311049. The reversal of 13103311044 is 44011330131.

It is a self number, because there is not a number n which added to its sum of digits gives 13103311044.

It is not an unprimeable number, because it can be changed into a prime (13103311049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114292 + ... + 198164.

It is an arithmetic number, because the mean of its divisors is an integer number (652875216).

Almost surely, 2^13103311044 is an apocalyptic number.

It is an amenable number.

13103311044 is an abundant number, since it is smaller than the sum of its proper divisors (18234699324).

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

13103311044 is a wasteful number, since it uses less digits than its factorization.

13103311044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84204 (or 84202 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13103311044 its reverse (44011330131), we get a palindrome (57114641175).

The spelling of 13103311044 in words is "thirteen billion, one hundred three million, three hundred eleven thousand, forty-four".