13144321113 has 32 divisors (see below), whose sum is σ = 22030927872. Its totient is φ = 6828204240.

The previous prime is 13144321109. The next prime is 13144321117. The reversal of 13144321113 is 31112344131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13144321109) and next prime (13144321117).

It is not a de Polignac number, because 13144321113 - 2² = 13144321109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13144321117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207181 + ... + 263082.

It is an arithmetic number, because the mean of its divisors is an integer number (688466496).

Almost surely, 2^13144321113 is an apocalyptic number.

It is an amenable number.

13144321113 is a deficient number, since it is larger than the sum of its proper divisors (8886606759).

13144321113 is an equidigital number, since it uses as much as digits as its factorization.

13144321113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470306 (or 470284 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 13144321113 its reverse (31112344131), we get a palindrome (44256665244).

The spelling of 13144321113 in words is "thirteen billion, one hundred forty-four million, three hundred twenty-one thousand, one hundred thirteen".