130981187173 has 2 divisors, whose sum is σ = 130981187174. Its totient is φ = 130981187172.

The previous prime is 130981187171. The next prime is 130981187201. The reversal of 130981187173 is 371781189031.

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., 128363125284 + 2618061889 = 358278^2 + 51167^2 .

It is a cyclic number.

It is not a de Polignac number, because 130981187173 - 2¹ = 130981187171 is a prime.

Together with 130981187171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130981187171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65490593586 + 65490593587.

It is an arithmetic number, because the mean of its divisors is an integer number (65490593587).

Almost surely, 2^130981187173 is an apocalyptic number.

It is an amenable number.

130981187173 is a deficient number, since it is larger than the sum of its proper divisors (1).

130981187173 is an equidigital number, since it uses as much as digits as its factorization.

130981187173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 49.

The spelling of 130981187173 in words is "one hundred thirty billion, nine hundred eighty-one million, one hundred eighty-seven thousand, one hundred seventy-three".