2105983321 has 4 divisors (see below), whose sum is σ = 2267982052. Its totient is φ = 1943984592.

The previous prime is 2105983289. The next prime is 2105983361. The reversal of 2105983321 is 1233895012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128936025 + 1977047296 = 11355^2 + 44464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105983321 - 2⁵ = 2105983289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105983361) 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, 80999346 + ... + 80999371.

It is an arithmetic number, because the mean of its divisors is an integer number (566995513).

Almost surely, 2^2105983321 is an apocalyptic number.

It is an amenable number.

2105983321 is a deficient number, since it is larger than the sum of its proper divisors (161998731).

2105983321 is a wasteful number, since it uses less digits than its factorization.

2105983321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161998730.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 2105983321 is about 45890.9938985854. The cubic root of 2105983321 is about 1281.7942206603.

The spelling of 2105983321 in words is "two billion, one hundred five million, nine hundred eighty-three thousand, three hundred twenty-one".