13505114011 has 4 divisors (see below), whose sum is σ = 13667826312. Its totient is φ = 13342401712.

The previous prime is 13505113981. The next prime is 13505114027. The reversal of 13505114011 is 11041150531.

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 13505114011 - 2¹⁵ = 13505081243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13505114611) 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, 81356026 + ... + 81356191.

It is an arithmetic number, because the mean of its divisors is an integer number (3416956578).

Almost surely, 2^13505114011 is an apocalyptic number.

13505114011 is a deficient number, since it is larger than the sum of its proper divisors (162712301).

13505114011 is an equidigital number, since it uses as much as digits as its factorization.

13505114011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162712300.

The product of its (nonzero) digits is 300, while the sum is 22.

Adding to 13505114011 its reverse (11041150531), we get a palindrome (24546264542).

The spelling of 13505114011 in words is "thirteen billion, five hundred five million, one hundred fourteen thousand, eleven".