12631360161 has 16 divisors (see below), whose sum is σ = 19868684288. Its totient is φ = 6985083600.

The previous prime is 12631360139. The next prime is 12631360171. The reversal of 12631360161 is 16106313621.

It is not a de Polignac number, because 12631360161 - 2¹⁰ = 12631359137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12631360171) 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, 9700855 + ... + 9702156.

It is an arithmetic number, because the mean of its divisors is an integer number (1241792768).

Almost surely, 2^12631360161 is an apocalyptic number.

It is an amenable number.

12631360161 is a deficient number, since it is larger than the sum of its proper divisors (7237324127).

12631360161 is a wasteful number, since it uses less digits than its factorization.

12631360161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19403052.

The product of its (nonzero) digits is 3888, while the sum is 30.

Adding to 12631360161 its reverse (16106313621), we get a palindrome (28737673782).

The spelling of 12631360161 in words is "twelve billion, six hundred thirty-one million, three hundred sixty thousand, one hundred sixty-one".