13113442636 has 12 divisors (see below), whose sum is σ = 26226885328. Its totient is φ = 5620046832.

The previous prime is 13113442621. The next prime is 13113442637. The reversal of 13113442636 is 63624431131.

13113442636 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13113442637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234168591 + ... + 234168646.

Almost surely, 2^13113442636 is an apocalyptic number.

It is an amenable number.

13113442636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13113442636 is a wasteful number, since it uses less digits than its factorization.

13113442636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468337248 (or 468337246 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

Adding to 13113442636 its reverse (63624431131), we get a palindrome (76737873767).

The spelling of 13113442636 in words is "thirteen billion, one hundred thirteen million, four hundred forty-two thousand, six hundred thirty-six".