131320325512 has 8 divisors (see below), whose sum is σ = 246225610350. Its totient is φ = 65660162752.

The previous prime is 131320325491. The next prime is 131320325627. The reversal of 131320325512 is 215523023131.

It can be written as a sum of positive squares in only one way, i.e., 68462815716 + 62857509796 = 261654^2 + 250714^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8207520337 + ... + 8207520352.

Almost surely, 2^131320325512 is an apocalyptic number.

It is an amenable number.

131320325512 is a deficient number, since it is larger than the sum of its proper divisors (114905284838).

131320325512 is a wasteful number, since it uses less digits than its factorization.

131320325512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16415040695 (or 16415040691 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 131320325512 its reverse (215523023131), we get a palindrome (346843348643).

The spelling of 131320325512 in words is "one hundred thirty-one billion, three hundred twenty million, three hundred twenty-five thousand, five hundred twelve".