2130501173 has 2 divisors, whose sum is σ = 2130501174. Its totient is φ = 2130501172.

The previous prime is 2130501161. The next prime is 2130501193. The reversal of 2130501173 is 3711050312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1200068164 + 930433009 = 34642^2 + 30503^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130501173 - 2⁴ = 2130501157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130501193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065250586 + 1065250587.

It is an arithmetic number, because the mean of its divisors is an integer number (1065250587).

Almost surely, 2^2130501173 is an apocalyptic number.

It is an amenable number.

2130501173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130501173 is an equidigital number, since it uses as much as digits as its factorization.

2130501173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 2130501173 is about 46157.3523179136. The cubic root of 2130501173 is about 1286.7492562075.

Adding to 2130501173 its reverse (3711050312), we get a palindrome (5841551485).

The spelling of 2130501173 in words is "two billion, one hundred thirty million, five hundred one thousand, one hundred seventy-three".