131103113000173 has 2 divisors, whose sum is σ = 131103113000174. Its totient is φ = 131103113000172.

The previous prime is 131103113000161. The next prime is 131103113000257. The reversal of 131103113000173 is 371000311301131.

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., 92653465194889 + 38449647805284 = 9625667^2 + 6200778^2 .

It is a cyclic number.

It is not a de Polignac number, because 131103113000173 - 2⁴¹ = 128904089744621 is a prime.

It is a super-2 number, since 2×131103113000173² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131103113100173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65551556500086 + 65551556500087.

It is an arithmetic number, because the mean of its divisors is an integer number (65551556500087).

Almost surely, 2^{131103113000173} is an apocalyptic number.

It is an amenable number.

131103113000173 is a deficient number, since it is larger than the sum of its proper divisors (1).

131103113000173 is an equidigital number, since it uses as much as digits as its factorization.

131103113000173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 25.

The spelling of 131103113000173 in words is "one hundred thirty-one trillion, one hundred three billion, one hundred thirteen million, one hundred seventy-three", and thus it is an aban number.