11131113120013 has 4 divisors (see below), whose sum is σ = 11514944606940. Its totient is φ = 10747281633088.

The previous prime is 11131113120007. The next prime is 11131113120047. The reversal of 11131113120013 is 31002131113111.

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 8591482041129 + 2539631078884 = 2931123^2 + 1593622^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131113120013 - 2³³ = 11122523185421 is a prime.

It is a super-2 number, since 2×11131113120013² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131113120073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191915743420 + ... + 191915743477.

It is an arithmetic number, because the mean of its divisors is an integer number (2878736151735).

Almost surely, 2^{11131113120013} is an apocalyptic number.

It is an amenable number.

11131113120013 is a deficient number, since it is larger than the sum of its proper divisors (383831486927).

11131113120013 is an equidigital number, since it uses as much as digits as its factorization.

11131113120013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383831486926.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 11131113120013 its reverse (31002131113111), we get a palindrome (42133244233124).

The spelling of 11131113120013 in words is "eleven trillion, one hundred thirty-one billion, one hundred thirteen million, one hundred twenty thousand, thirteen".