13111113043 has 4 divisors (see below), whose sum is σ = 14984129200. Its totient is φ = 11238096888.

The previous prime is 13111113007. The next prime is 13111113047. The reversal of 13111113043 is 34031111131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13111113043 - 2¹⁷ = 13110981971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13111113043.

It is not an unprimeable number, because it can be changed into a prime (13111113047) 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, 936508068 + ... + 936508081.

It is an arithmetic number, because the mean of its divisors is an integer number (3746032300).

Almost surely, 2^13111113043 is an apocalyptic number.

13111113043 is a deficient number, since it is larger than the sum of its proper divisors (1873016157).

13111113043 is an equidigital number, since it uses as much as digits as its factorization.

13111113043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873016156.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 13111113043 its reverse (34031111131), we get a palindrome (47142224174).

The spelling of 13111113043 in words is "thirteen billion, one hundred eleven million, one hundred thirteen thousand, forty-three".