2321320143 has 4 divisors (see below), whose sum is σ = 3095093528. Its totient is φ = 1547546760.

The previous prime is 2321320093. The next prime is 2321320153. The reversal of 2321320143 is 3410231232.

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

It is not a de Polignac number, because 2321320143 - 2⁸ = 2321319887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321320153) 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, 386886688 + ... + 386886693.

It is an arithmetic number, because the mean of its divisors is an integer number (773773382).

Almost surely, 2^2321320143 is an apocalyptic number.

2321320143 is a deficient number, since it is larger than the sum of its proper divisors (773773385).

2321320143 is an equidigital number, since it uses as much as digits as its factorization.

2321320143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773773384.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2321320143 is about 48180.0803548520. The cubic root of 2321320143 is about 1324.0722387285.

Adding to 2321320143 its reverse (3410231232), we get a palindrome (5731551375).

The spelling of 2321320143 in words is "two billion, three hundred twenty-one million, three hundred twenty thousand, one hundred forty-three".