202130022173 has 2 divisors, whose sum is σ = 202130022174. Its totient is φ = 202130022172.

The previous prime is 202130022139. The next prime is 202130022187. The reversal of 202130022173 is 371220031202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163043941369 + 39086080804 = 403787^2 + 197702^2 .

It is a cyclic number.

It is not a de Polignac number, because 202130022173 - 2²⁶ = 202062913309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202132022173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101065011086 + 101065011087.

It is an arithmetic number, because the mean of its divisors is an integer number (101065011087).

Almost surely, 2^202130022173 is an apocalyptic number.

It is an amenable number.

202130022173 is a deficient number, since it is larger than the sum of its proper divisors (1).

202130022173 is an equidigital number, since it uses as much as digits as its factorization.

202130022173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 202130022173 its reverse (371220031202), we get a palindrome (573350053375).

The spelling of 202130022173 in words is "two hundred two billion, one hundred thirty million, twenty-two thousand, one hundred seventy-three".