2173011001 has 4 divisors (see below), whose sum is σ = 2483441152. Its totient is φ = 1862580852.

The previous prime is 2173010993. The next prime is 2173011007. The reversal of 2173011001 is 1001103712.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2173011001 - 2³ = 2173010993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173011007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155215065 + ... + 155215078.

It is an arithmetic number, because the mean of its divisors is an integer number (620860288).

Almost surely, 2^2173011001 is an apocalyptic number.

It is an amenable number.

2173011001 is a deficient number, since it is larger than the sum of its proper divisors (310430151).

2173011001 is an equidigital number, since it uses as much as digits as its factorization.

2173011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310430150.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 2173011001 is about 46615.5660804414. The cubic root of 2173011001 is about 1295.2511155170.

Adding to 2173011001 its reverse (1001103712), we get a palindrome (3174114713).

The spelling of 2173011001 in words is "two billion, one hundred seventy-three million, eleven thousand, one".