2171203241 has 4 divisors (see below), whose sum is σ = 2171521152. Its totient is φ = 2170885332.

The previous prime is 2171203189. The next prime is 2171203249. The reversal of 2171203241 is 1423021712.

2171203241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-2171203241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2171203249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148481 + ... + 162446.

It is an arithmetic number, because the mean of its divisors is an integer number (542880288).

Almost surely, 2^2171203241 is an apocalyptic number.

It is an amenable number.

2171203241 is a deficient number, since it is larger than the sum of its proper divisors (317911).

2171203241 is an equidigital number, since it uses as much as digits as its factorization.

2171203241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317910.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2171203241 is about 46596.1719565030. The cubic root of 2171203241 is about 1294.8918363469.

Adding to 2171203241 its reverse (1423021712), we get a palindrome (3594224953).

The spelling of 2171203241 in words is "two billion, one hundred seventy-one million, two hundred three thousand, two hundred forty-one".