131434031173 has 2 divisors, whose sum is σ = 131434031174. Its totient is φ = 131434031172.

The previous prime is 131434031143. The next prime is 131434031207. The reversal of 131434031173 is 371130434131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124218887809 + 7215143364 = 352447^2 + 84942^2 .

It is a cyclic number.

It is not a de Polignac number, because 131434031173 - 2²⁵ = 131400476741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131434031143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65717015586 + 65717015587.

It is an arithmetic number, because the mean of its divisors is an integer number (65717015587).

Almost surely, 2^131434031173 is an apocalyptic number.

It is an amenable number.

131434031173 is a deficient number, since it is larger than the sum of its proper divisors (1).

131434031173 is an equidigital number, since it uses as much as digits as its factorization.

131434031173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 131434031173 in words is "one hundred thirty-one billion, four hundred thirty-four million, thirty-one thousand, one hundred seventy-three".