11131022113 has 4 divisors (see below), whose sum is σ = 11131270020. Its totient is φ = 11130774208.

The previous prime is 11131022093. The next prime is 11131022129. The reversal of 11131022113 is 31122013111.

It is a happy number.

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 5278313104 + 5852709009 = 72652^2 + 76503^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131022113 - 2²⁵ = 11097467681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11131022713) 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, 35620 + ... + 153397.

It is an arithmetic number, because the mean of its divisors is an integer number (2782817505).

Almost surely, 2^11131022113 is an apocalyptic number.

It is an amenable number.

11131022113 is a deficient number, since it is larger than the sum of its proper divisors (247907).

11131022113 is an equidigital number, since it uses as much as digits as its factorization.

11131022113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247906.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11131022113 its reverse (31122013111), we get a palindrome (42253035224).

The spelling of 11131022113 in words is "eleven billion, one hundred thirty-one million, twenty-two thousand, one hundred thirteen".