2320651321 has 4 divisors (see below), whose sum is σ = 2321483812. Its totient is φ = 2319818832.

The previous prime is 2320651313. The next prime is 2320651331. The reversal of 2320651321 is 1231560232.

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 1424307600 + 896343721 = 37740^2 + 29939^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320651321 - 2³ = 2320651313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2320651301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412050 + ... + 417643.

It is an arithmetic number, because the mean of its divisors is an integer number (580370953).

Almost surely, 2^2320651321 is an apocalyptic number.

It is an amenable number.

2320651321 is a deficient number, since it is larger than the sum of its proper divisors (832491).

2320651321 is an equidigital number, since it uses as much as digits as its factorization.

2320651321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832490.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2320651321 is about 48173.1389988238. The cubic root of 2320651321 is about 1323.9450619997.

The spelling of 2320651321 in words is "two billion, three hundred twenty million, six hundred fifty-one thousand, three hundred twenty-one".