13111308811 has 8 divisors (see below), whose sum is σ = 13177091664. Its totient is φ = 13045620480.

The previous prime is 13111308809. The next prime is 13111308823. The reversal of 13111308811 is 11880311131.

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

It is a cyclic number.

It is not a de Polignac number, because 13111308811 - 2¹ = 13111308809 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 13111308811.

It is not an unprimeable number, because it can be changed into a prime (13111308851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263151 + ... + 308983.

It is an arithmetic number, because the mean of its divisors is an integer number (1647136458).

Almost surely, 2^13111308811 is an apocalyptic number.

13111308811 is a deficient number, since it is larger than the sum of its proper divisors (65782853).

13111308811 is a wasteful number, since it uses less digits than its factorization.

13111308811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47261.

The product of its (nonzero) digits is 576, while the sum is 28.

Adding to 13111308811 its reverse (11880311131), we get a palindrome (24991619942).

The spelling of 13111308811 in words is "thirteen billion, one hundred eleven million, three hundred eight thousand, eight hundred eleven".