13031144705 has 16 divisors (see below), whose sum is σ = 15684433920. Its totient is φ = 10393586112.

The previous prime is 13031144701. The next prime is 13031144719. The reversal of 13031144705 is 50744113031.

It is a cyclic number.

It is not a de Polignac number, because 13031144705 - 2² = 13031144701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13031144701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3823112 + ... + 3826518.

It is an arithmetic number, because the mean of its divisors is an integer number (980277120).

Almost surely, 2^13031144705 is an apocalyptic number.

It is an amenable number.

13031144705 is a deficient number, since it is larger than the sum of its proper divisors (2653289215).

13031144705 is a wasteful number, since it uses less digits than its factorization.

13031144705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 13031144705 its reverse (50744113031), we get a palindrome (63775257736).

The spelling of 13031144705 in words is "thirteen billion, thirty-one million, one hundred forty-four thousand, seven hundred five".