13113444243 has 8 divisors (see below), whose sum is σ = 17485434000. Its totient is φ = 8741875328.

The previous prime is 13113444233. The next prime is 13113444269. The reversal of 13113444243 is 34244431131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13113444243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13113444243.

It is not an unprimeable number, because it can be changed into a prime (13113444233) 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 7 ways as a sum of consecutive naturals, for example, 23418 + ... + 163631.

It is an arithmetic number, because the mean of its divisors is an integer number (2185679250).

Almost surely, 2^13113444243 is an apocalyptic number.

13113444243 is a deficient number, since it is larger than the sum of its proper divisors (4371989757).

13113444243 is a wasteful number, since it uses less digits than its factorization.

13113444243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210421.

The product of its digits is 13824, while the sum is 30.

Adding to 13113444243 its reverse (34244431131), we get a palindrome (47357875374).

The spelling of 13113444243 in words is "thirteen billion, one hundred thirteen million, four hundred forty-four thousand, two hundred forty-three".