131324135138 has 16 divisors (see below), whose sum is σ = 234915223680. Its totient is φ = 53834738496.

The previous prime is 131324135119. The next prime is 131324135233. The reversal of 131324135138 is 831531423131.

It is a junction number, because it is equal to n+sod(n) for n = 131324135098 and 131324135107.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 203919143 + ... + 203919786.

It is an arithmetic number, because the mean of its divisors is an integer number (14682201480).

Almost surely, 2^131324135138 is an apocalyptic number.

131324135138 is a deficient number, since it is larger than the sum of its proper divisors (103591088542).

131324135138 is a wasteful number, since it uses less digits than its factorization.

131324135138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407838961.

The product of its digits is 25920, while the sum is 35.

Adding to 131324135138 its reverse (831531423131), we get a palindrome (962855558269).

The spelling of 131324135138 in words is "one hundred thirty-one billion, three hundred twenty-four million, one hundred thirty-five thousand, one hundred thirty-eight".