13100311044 has 108 divisors (see below), whose sum is σ = 35310244788. Its totient is φ = 4094361600.

The previous prime is 13100311019. The next prime is 13100311051. The reversal of 13100311044 is 44011300131.

13100311044 is a `hidden beast` number, since 1 + 310 + 0 + 311 + 0 + 44 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 3423654144 + 9676656900 = 58512^2 + 98370^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2921284 + ... + 2925764.

It is an arithmetic number, because the mean of its divisors is an integer number (326946711).

Almost surely, 2^13100311044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13100311044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17655122394).

13100311044 is an abundant number, since it is smaller than the sum of its proper divisors (22209933744).

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

13100311044 is a wasteful number, since it uses less digits than its factorization.

13100311044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806 (or 4784 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13100311044 its reverse (44011300131), we get a palindrome (57111611175).

The spelling of 13100311044 in words is "thirteen billion, one hundred million, three hundred eleven thousand, forty-four".