2171317001 has 12 divisors (see below), whose sum is σ = 2594092032. Its totient is φ = 1780207176.

The previous prime is 2171316943. The next prime is 2171317003. The reversal of 2171317001 is 1007131712.

It is not a de Polignac number, because 2171317001 - 2⁶ = 2171316937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (2171317003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289481 + ... + 296886.

It is an arithmetic number, because the mean of its divisors is an integer number (216174336).

Almost surely, 2^2171317001 is an apocalyptic number.

It is an amenable number.

2171317001 is a deficient number, since it is larger than the sum of its proper divisors (422775031).

2171317001 is an equidigital number, since it uses as much as digits as its factorization.

2171317001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586420 (or 586397 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 23.

The square root of 2171317001 is about 46597.3926416490. The cubic root of 2171317001 is about 1294.9144511994.

Adding to 2171317001 its reverse (1007131712), we get a palindrome (3178448713).

The spelling of 2171317001 in words is "two billion, one hundred seventy-one million, three hundred seventeen thousand, one".