131212839261567 has 16 divisors (see below), whose sum is σ = 201060376208640. Its totient is φ = 74559889506432.

The previous prime is 131212839261541. The next prime is 131212839261589. The reversal of 131212839261567 is 765162938212131.

It is not a de Polignac number, because 131212839261567 - 2¹⁰ = 131212839260543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212839261667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17453153898 + ... + 17453161415.

It is an arithmetic number, because the mean of its divisors is an integer number (12566273513040).

Almost surely, 2^{131212839261567} is an apocalyptic number.

131212839261567 is a deficient number, since it is larger than the sum of its proper divisors (69847536947073).

131212839261567 is a wasteful number, since it uses less digits than its factorization.

131212839261567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34906315502.

The product of its digits is 6531840, while the sum is 57.

The spelling of 131212839261567 in words is "one hundred thirty-one trillion, two hundred twelve billion, eight hundred thirty-nine million, two hundred sixty-one thousand, five hundred sixty-seven".