13011005144 has 8 divisors (see below), whose sum is σ = 24395634660. Its totient is φ = 6505502568.

The previous prime is 13011005143. The next prime is 13011005177. The reversal of 13011005144 is 44150011031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011005143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813187814 + ... + 813187829.

Almost surely, 2^13011005144 is an apocalyptic number.

It is an amenable number.

13011005144 is a deficient number, since it is larger than the sum of its proper divisors (11384629516).

13011005144 is a wasteful number, since it uses less digits than its factorization.

13011005144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626375649 (or 1626375645 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 13011005144 its reverse (44150011031), we get a palindrome (57161016175).

The spelling of 13011005144 in words is "thirteen billion, eleven million, five thousand, one hundred forty-four".