13005131344 has 40 divisors (see below), whose sum is σ = 25736477760. Its totient is φ = 6364780800.

The previous prime is 13005131341. The next prime is 13005131351. The reversal of 13005131344 is 44313150031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13005131341) 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, 116724 + ... + 199084.

It is an arithmetic number, because the mean of its divisors is an integer number (643411944).

Almost surely, 2^13005131344 is an apocalyptic number.

It is an amenable number.

13005131344 is a deficient number, since it is larger than the sum of its proper divisors (12731346416).

13005131344 is a wasteful number, since it uses less digits than its factorization.

13005131344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82579 (or 82573 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13005131344 its reverse (44313150031), we get a palindrome (57318281375).

The spelling of 13005131344 in words is "thirteen billion, five million, one hundred thirty-one thousand, three hundred forty-four".