201113130173 has 2 divisors, whose sum is σ = 201113130174. Its totient is φ = 201113130172.

The previous prime is 201113130161. The next prime is 201113130181. The reversal of 201113130173 is 371031311102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135849742084 + 65263388089 = 368578^2 + 255467^2 .

It is a cyclic number.

It is not a de Polignac number, because 201113130173 - 2⁴ = 201113130157 is a prime.

It is a super-2 number, since 2×201113130173² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201113130373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100556565086 + 100556565087.

It is an arithmetic number, because the mean of its divisors is an integer number (100556565087).

Almost surely, 2^201113130173 is an apocalyptic number.

It is an amenable number.

201113130173 is a deficient number, since it is larger than the sum of its proper divisors (1).

201113130173 is an equidigital number, since it uses as much as digits as its factorization.

201113130173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

Adding to 201113130173 its reverse (371031311102), we get a palindrome (572144441275).

The spelling of 201113130173 in words is "two hundred one billion, one hundred thirteen million, one hundred thirty thousand, one hundred seventy-three".