13111222311 has 12 divisors (see below), whose sum is σ = 20660108040. Its totient is φ = 7946195280.

The previous prime is 13111222301. The next prime is 13111222339. The reversal of 13111222311 is 11322211131.

13111222311 is a `hidden beast` number, since 1 + 311 + 122 + 231 + 1 = 666.

13111222311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13111222311 - 2¹¹ = 13111220263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111222301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66218196 + ... + 66218393.

It is an arithmetic number, because the mean of its divisors is an integer number (1721675670).

Almost surely, 2^13111222311 is an apocalyptic number.

13111222311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13111222311 is a deficient number, since it is larger than the sum of its proper divisors (7548885729).

13111222311 is a wasteful number, since it uses less digits than its factorization.

13111222311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132436606 (or 132436603 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 13111222311 its reverse (11322211131), we get a palindrome (24433433442).

The spelling of 13111222311 in words is "thirteen billion, one hundred eleven million, two hundred twenty-two thousand, three hundred eleven".