131232134223173 has 2 divisors, whose sum is σ = 131232134223174. Its totient is φ = 131232134223172.

The previous prime is 131232134223133. The next prime is 131232134223259. The reversal of 131232134223173 is 371322431232131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126030664890244 + 5201469332929 = 11226338^2 + 2280673^2 .

It is a cyclic number.

It is not a de Polignac number, because 131232134223173 - 2⁶ = 131232134223109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131232134223133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65616067111586 + 65616067111587.

It is an arithmetic number, because the mean of its divisors is an integer number (65616067111587).

Almost surely, 2^{131232134223173} is an apocalyptic number.

It is an amenable number.

131232134223173 is a deficient number, since it is larger than the sum of its proper divisors (1).

131232134223173 is an equidigital number, since it uses as much as digits as its factorization.

131232134223173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 38.

The spelling of 131232134223173 in words is "one hundred thirty-one trillion, two hundred thirty-two billion, one hundred thirty-four million, two hundred twenty-three thousand, one hundred seventy-three".