2301320321 has 4 divisors (see below), whose sum is σ = 2302005972. Its totient is φ = 2300634672.

The previous prime is 2301320303. The next prime is 2301320381. The reversal of 2301320321 is 1230231032.

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 2294889025 + 6431296 = 47905^2 + 2536^2 .

It is a cyclic number.

It is not a de Polignac number, because 2301320321 - 2²² = 2297126017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2301320321.

It is not an unprimeable number, because it can be changed into a prime (2301320381) 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, 337766 + ... + 344511.

It is an arithmetic number, because the mean of its divisors is an integer number (575501493).

Almost surely, 2^2301320321 is an apocalyptic number.

It is an amenable number.

2301320321 is a deficient number, since it is larger than the sum of its proper divisors (685651).

2301320321 is an equidigital number, since it uses as much as digits as its factorization.

2301320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685650.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2301320321 is about 47972.0785561768. The cubic root of 2301320321 is about 1320.2586577983.

Adding to 2301320321 its reverse (1230231032), we get a palindrome (3531551353).

It can be divided in two parts, 23013 and 20321, that added together give a palindrome (43334).

The spelling of 2301320321 in words is "two billion, three hundred one million, three hundred twenty thousand, three hundred twenty-one".