131220112113 has 48 divisors (see below), whose sum is σ = 196278990336. Its totient is φ = 84428974080.

The previous prime is 131220112097. The next prime is 131220112183. The reversal of 131220112113 is 311211022131.

It is not a de Polignac number, because 131220112113 - 2⁴ = 131220112097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131220112183) 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 47 ways as a sum of consecutive naturals, for example, 10493881 + ... + 10506377.

It is an arithmetic number, because the mean of its divisors is an integer number (4089145632).

Almost surely, 2^131220112113 is an apocalyptic number.

It is an amenable number.

131220112113 is a deficient number, since it is larger than the sum of its proper divisors (65058878223).

131220112113 is a wasteful number, since it uses less digits than its factorization.

131220112113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12894 (or 12891 counting only the distinct ones).

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

Adding to 131220112113 its reverse (311211022131), we get a palindrome (442431134244).

The spelling of 131220112113 in words is "one hundred thirty-one billion, two hundred twenty million, one hundred twelve thousand, one hundred thirteen".