2081329321 has 8 divisors (see below), whose sum is σ = 2105428104. Its totient is φ = 2057299200.

The previous prime is 2081329279. The next prime is 2081329337. The reversal of 2081329321 is 1239231802.

It can be written as a sum of positive squares in 4 ways, for example, as 25613721 + 2055715600 = 5061^2 + 45340^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081329321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081329351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45105 + ... + 78721.

It is an arithmetic number, because the mean of its divisors is an integer number (263178513).

Almost surely, 2^2081329321 is an apocalyptic number.

It is an amenable number.

2081329321 is a deficient number, since it is larger than the sum of its proper divisors (24098783).

2081329321 is a wasteful number, since it uses less digits than its factorization.

2081329321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34331.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 2081329321 is about 45621.5883217584. The cubic root of 2081329321 is about 1276.7727376626.

The spelling of 2081329321 in words is "two billion, eighty-one million, three hundred twenty-nine thousand, three hundred twenty-one".