131443255335109 has 2 divisors, whose sum is σ = 131443255335110. Its totient is φ = 131443255335108.

The previous prime is 131443255334987. The next prime is 131443255335121. The reversal of 131443255335109 is 901533552344131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120576936447009 + 10866318888100 = 10980753^2 + 3296410^2 .

It is a cyclic number.

It is not a de Polignac number, because 131443255335109 - 2²⁵ = 131443221780677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131443255335209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65721627667554 + 65721627667555.

It is an arithmetic number, because the mean of its divisors is an integer number (65721627667555).

Almost surely, 2^{131443255335109} is an apocalyptic number.

It is an amenable number.

131443255335109 is a deficient number, since it is larger than the sum of its proper divisors (1).

131443255335109 is an equidigital number, since it uses as much as digits as its factorization.

131443255335109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916000, while the sum is 49.

The spelling of 131443255335109 in words is "one hundred thirty-one trillion, four hundred forty-three billion, two hundred fifty-five million, three hundred thirty-five thousand, one hundred nine".