13111312213133 has 4 divisors (see below), whose sum is σ = 13114050015420. Its totient is φ = 13108574410848.

The previous prime is 13111312213123. The next prime is 13111312213157. The reversal of 13111312213133 is 33131221311131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 750652425604 + 12360659787529 = 866402^2 + 3515773^2 .

It is a cyclic number.

It is not a de Polignac number, because 13111312213133 - 2⁴ = 13111312213117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111312213123) 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, 1368893960 + ... + 1368903537.

It is an arithmetic number, because the mean of its divisors is an integer number (3278512503855).

Almost surely, 2^{13111312213133} is an apocalyptic number.

It is an amenable number.

13111312213133 is a deficient number, since it is larger than the sum of its proper divisors (2737802287).

13111312213133 is an equidigital number, since it uses as much as digits as its factorization.

13111312213133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737802286.

The product of its digits is 972, while the sum is 26.

Adding to 13111312213133 its reverse (33131221311131), we get a palindrome (46242533524264).

The spelling of 13111312213133 in words is "thirteen trillion, one hundred eleven billion, three hundred twelve million, two hundred thirteen thousand, one hundred thirty-three".