13011040444 has 6 divisors (see below), whose sum is σ = 22769320784. Its totient is φ = 6505520220.

The previous prime is 13011040439. The next prime is 13011040447. The reversal of 13011040444 is 44404011031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011040447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1626380052 + ... + 1626380059.

Almost surely, 2^13011040444 is an apocalyptic number.

It is an amenable number.

13011040444 is a deficient number, since it is larger than the sum of its proper divisors (9758280340).

13011040444 is a wasteful number, since it uses less digits than its factorization.

13011040444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252760115 (or 3252760113 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 13011040444 its reverse (44404011031), we get a palindrome (57415051475).

The spelling of 13011040444 in words is "thirteen billion, eleven million, forty thousand, four hundred forty-four".