131132021234525 has 12 divisors (see below), whose sum is σ = 166385187874752. Its totient is φ = 102465951475440.

The previous prime is 131132021234449. The next prime is 131132021234561. The reversal of 131132021234525 is 525432120231131.

It is a de Polignac number, because none of the positive numbers 2^k-131132021234525 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, 60991636709 + ... + 60991638858.

It is an arithmetic number, because the mean of its divisors is an integer number (13865432322896).

Almost surely, 2^{131132021234525} is an apocalyptic number.

It is an amenable number.

131132021234525 is a deficient number, since it is larger than the sum of its proper divisors (35253166640227).

131132021234525 is a wasteful number, since it uses less digits than its factorization.

131132021234525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121983275620 (or 121983275615 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 131132021234525 its reverse (525432120231131), we get a palindrome (656564141465656).

The spelling of 131132021234525 in words is "one hundred thirty-one trillion, one hundred thirty-two billion, twenty-one million, two hundred thirty-four thousand, five hundred twenty-five".