13111320044 has 24 divisors (see below), whose sum is σ = 24156216000. Its totient is φ = 6209652240.

The previous prime is 13111320043. The next prime is 13111320059. The reversal of 13111320044 is 44002311131.

It is a junction number, because it is equal to n+sod(n) for n = 13111319998 and 13111320025.

It is not an unprimeable number, because it can be changed into a prime (13111320043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776807 + ... + 793505.

It is an arithmetic number, because the mean of its divisors is an integer number (1006509000).

Almost surely, 2^13111320044 is an apocalyptic number.

It is an amenable number.

13111320044 is a deficient number, since it is larger than the sum of its proper divisors (11044895956).

13111320044 is a wasteful number, since it uses less digits than its factorization.

13111320044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27053 (or 27051 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13111320044 its reverse (44002311131), we get a palindrome (57113631175).

The spelling of 13111320044 in words is "thirteen billion, one hundred eleven million, three hundred twenty thousand, forty-four".