13681181106 has 12 divisors (see below), whose sum is σ = 29642559102. Its totient is φ = 4560393696.

The previous prime is 13681181099. The next prime is 13681181119. The reversal of 13681181106 is 60118118631.

It can be written as a sum of positive squares in only one way, i.e., 7338492225 + 6342688881 = 85665^2 + 79641^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 380032791 + ... + 380032826.

Almost surely, 2^13681181106 is an apocalyptic number.

13681181106 is an abundant number, since it is smaller than the sum of its proper divisors (15961377996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13681181106 is a wasteful number, since it uses less digits than its factorization.

13681181106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760065625 (or 760065622 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

Adding to 13681181106 its reverse (60118118631), we get a palindrome (73799299737).

The spelling of 13681181106 in words is "thirteen billion, six hundred eighty-one million, one hundred eighty-one thousand, one hundred six".