201040130173 has 2 divisors, whose sum is σ = 201040130174. Its totient is φ = 201040130172.

The previous prime is 201040130171. The next prime is 201040130189. The reversal of 201040130173 is 371031040102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126381672004 + 74658458169 = 355502^2 + 273237^2 .

It is a cyclic number.

It is not a de Polignac number, because 201040130173 - 2¹ = 201040130171 is a prime.

Together with 201040130171, 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 (201040130171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100520065086 + 100520065087.

It is an arithmetic number, because the mean of its divisors is an integer number (100520065087).

Almost surely, 2^201040130173 is an apocalyptic number.

It is an amenable number.

201040130173 is a deficient number, since it is larger than the sum of its proper divisors (1).

201040130173 is an equidigital number, since it uses as much as digits as its factorization.

201040130173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 201040130173 its reverse (371031040102), we get a palindrome (572071170275).

The spelling of 201040130173 in words is "two hundred one billion, forty million, one hundred thirty thousand, one hundred seventy-three".