13040044011 has 32 divisors (see below), whose sum is σ = 20087500800. Its totient is φ = 8351449920.

The previous prime is 13040044001. The next prime is 13040044019. The reversal of 13040044011 is 11044004031.

It is not a de Polignac number, because 13040044011 - 2¹⁷ = 13039912939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13040044019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57810 + ... + 171528.

It is an arithmetic number, because the mean of its divisors is an integer number (627734400).

Almost surely, 2^13040044011 is an apocalyptic number.

13040044011 is a deficient number, since it is larger than the sum of its proper divisors (7047456789).

13040044011 is a wasteful number, since it uses less digits than its factorization.

13040044011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113896 (or 113890 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 13040044011 its reverse (11044004031), we get a palindrome (24084048042).

The spelling of 13040044011 in words is "thirteen billion, forty million, forty-four thousand, eleven".