8001171321 has 48 divisors (see below), whose sum is σ = 12656584512. Its totient is φ = 4456857600.

The previous prime is 8001171319. The next prime is 8001171433. The reversal of 8001171321 is 1231711008.

It is a happy number.

It is not a de Polignac number, because 8001171321 - 2¹ = 8001171319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8001171291 and 8001171300.

It is not an unprimeable number, because it can be changed into a prime (8001171221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1341081 + ... + 1347033.

It is an arithmetic number, because the mean of its divisors is an integer number (263678844).

Almost surely, 2^8001171321 is an apocalyptic number.

It is an amenable number.

8001171321 is a deficient number, since it is larger than the sum of its proper divisors (4655413191).

8001171321 is a wasteful number, since it uses less digits than its factorization.

8001171321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6234 (or 6221 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 8001171321 is about 89449.2667437805. The cubic root of 8001171321 is about 2000.0976053199.

Adding to 8001171321 its reverse (1231711008), we get a palindrome (9232882329).

The spelling of 8001171321 in words is "eight billion, one million, one hundred seventy-one thousand, three hundred twenty-one".