11231122113 has 12 divisors (see below), whose sum is σ = 16316507220. Its totient is φ = 7444133856.

The previous prime is 11231122109. The next prime is 11231122127. The reversal of 11231122113 is 31122113211.

11231122113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4203317889 + 7027804224 = 64833^2 + 83832^2 .

It is not a de Polignac number, because 11231122113 - 2² = 11231122109 is a prime.

It is a super-2 number, since 2×11231122113² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231122193) 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, 3605098 + ... + 3608211.

It is an arithmetic number, because the mean of its divisors is an integer number (1359708935).

Almost surely, 2^11231122113 is an apocalyptic number.

It is an amenable number.

11231122113 is a deficient number, since it is larger than the sum of its proper divisors (5085385107).

11231122113 is a wasteful number, since it uses less digits than its factorization.

11231122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7213488 (or 7213485 counting only the distinct ones).

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

Adding to 11231122113 its reverse (31122113211), we get a palindrome (42353235324).

The spelling of 11231122113 in words is "eleven billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred thirteen".