113131322144 has 24 divisors (see below), whose sum is σ = 226929695580. Its totient is φ = 55498383616.

The previous prime is 113131322141. The next prime is 113131322167. The reversal of 113131322144 is 441223131311.

It can be written as a sum of positive squares in 2 ways, for example, as 87268249744 + 25863072400 = 295412^2 + 160820^2 .

It is not an unprimeable number, because it can be changed into a prime (113131322141) 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, 33350699 + ... + 33354090.

Almost surely, 2^113131322144 is an apocalyptic number.

It is an amenable number.

113131322144 is an abundant number, since it is smaller than the sum of its proper divisors (113798373436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113131322144 is an equidigital number, since it uses as much as digits as its factorization.

113131322144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66704852 (or 66704844 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

Adding to 113131322144 its reverse (441223131311), we get a palindrome (554354453455).

The spelling of 113131322144 in words is "one hundred thirteen billion, one hundred thirty-one million, three hundred twenty-two thousand, one hundred forty-four".