2130113173 has 2 divisors, whose sum is σ = 2130113174. Its totient is φ = 2130113172.

The previous prime is 2130113159. The next prime is 2130113201. The reversal of 2130113173 is 3713110312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1596641764 + 533471409 = 39958^2 + 23097^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130113173 - 2⁹ = 2130112661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130113773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065056586 + 1065056587.

It is an arithmetic number, because the mean of its divisors is an integer number (1065056587).

Almost surely, 2^2130113173 is an apocalyptic number.

It is an amenable number.

2130113173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130113173 is an equidigital number, since it uses as much as digits as its factorization.

2130113173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 2130113173 is about 46153.1491124929. The cubic root of 2130113173 is about 1286.6711385907.

Adding to 2130113173 its reverse (3713110312), we get a palindrome (5843223485).

The spelling of 2130113173 in words is "two billion, one hundred thirty million, one hundred thirteen thousand, one hundred seventy-three".