131212839261541 has 2 divisors, whose sum is σ = 131212839261542. Its totient is φ = 131212839261540.

The previous prime is 131212839261521. The next prime is 131212839261589. The reversal of 131212839261541 is 145162938212131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91456611257025 + 39756228004516 = 9563295^2 + 6305254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131212839261541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131212839261521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606419630770 + 65606419630771.

It is an arithmetic number, because the mean of its divisors is an integer number (65606419630771).

Almost surely, 2^{131212839261541} is an apocalyptic number.

It is an amenable number.

131212839261541 is a deficient number, since it is larger than the sum of its proper divisors (1).

131212839261541 is an equidigital number, since it uses as much as digits as its factorization.

131212839261541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 49.

The spelling of 131212839261541 in words is "one hundred thirty-one trillion, two hundred twelve billion, eight hundred thirty-nine million, two hundred sixty-one thousand, five hundred forty-one".