2120201173 has 2 divisors, whose sum is σ = 2120201174. Its totient is φ = 2120201172.

The previous prime is 2120201141. The next prime is 2120201179. The reversal of 2120201173 is 3711020212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1234960164 + 885241009 = 35142^2 + 29753^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120201173 - 2⁵ = 2120201141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120201173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120201179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060100586 + 1060100587.

It is an arithmetic number, because the mean of its divisors is an integer number (1060100587).

Almost surely, 2^2120201173 is an apocalyptic number.

It is an amenable number.

2120201173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120201173 is an equidigital number, since it uses as much as digits as its factorization.

2120201173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2120201173 is about 46045.6422802419. The cubic root of 2120201173 is about 1284.6722905789.

Adding to 2120201173 its reverse (3711020212), we get a palindrome (5831221385).

The spelling of 2120201173 in words is "two billion, one hundred twenty million, two hundred one thousand, one hundred seventy-three".