131405313444325 has 12 divisors (see below), whose sum is σ = 162943053983908. Its totient is φ = 105123950553600.

The previous prime is 131405313444299. The next prime is 131405313444343. The reversal of 131405313444325 is 523444313504131.

It can be written as a sum of positive squares in 6 ways, for example, as 46378306466244 + 85027006978081 = 6810162^2 + 9221009^2 .

It is not a de Polignac number, because 131405313444325 - 2²⁷ = 131405179226597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1643155 + ... + 16294495.

Almost surely, 2^{131405313444325} is an apocalyptic number.

It is an amenable number.

131405313444325 is a deficient number, since it is larger than the sum of its proper divisors (31537740539583).

131405313444325 is a wasteful number, since it uses less digits than its factorization.

131405313444325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15010104 (or 15010099 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 43.

Adding to 131405313444325 its reverse (523444313504131), we get a palindrome (654849626948456).

The spelling of 131405313444325 in words is "one hundred thirty-one trillion, four hundred five billion, three hundred thirteen million, four hundred forty-four thousand, three hundred twenty-five".