13231030561 has 16 divisors (see below), whose sum is σ = 15296757760. Its totient is φ = 11209862160.

The previous prime is 13231030559. The next prime is 13231030567. The reversal of 13231030561 is 16503013231.

It is not a de Polignac number, because 13231030561 - 2¹ = 13231030559 is a prime.

It is a super-2 number, since 2×13231030561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231030567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213460 + ... + 268378.

It is an arithmetic number, because the mean of its divisors is an integer number (956047360).

Almost surely, 2^13231030561 is an apocalyptic number.

It is an amenable number.

13231030561 is a deficient number, since it is larger than the sum of its proper divisors (2065727199).

13231030561 is a wasteful number, since it uses less digits than its factorization.

13231030561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55324.

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 13231030561 its reverse (16503013231), we get a palindrome (29734043792).

The spelling of 13231030561 in words is "thirteen billion, two hundred thirty-one million, thirty thousand, five hundred sixty-one".