2143120323 has 4 divisors (see below), whose sum is σ = 2857493768. Its totient is φ = 1428746880.

The previous prime is 2143120321. The next prime is 2143120361. The reversal of 2143120323 is 3230213412.

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

It is not a de Polignac number, because 2143120323 - 2¹ = 2143120321 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 2143120323.

It is not an unprimeable number, because it can be changed into a prime (2143120321) 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, 357186718 + ... + 357186723.

It is an arithmetic number, because the mean of its divisors is an integer number (714373442).

Almost surely, 2^2143120323 is an apocalyptic number.

2143120323 is a deficient number, since it is larger than the sum of its proper divisors (714373445).

2143120323 is an equidigital number, since it uses as much as digits as its factorization.

2143120323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714373444.

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

The square root of 2143120323 is about 46293.8475717886. The cubic root of 2143120323 is about 1289.2847672690.

Adding to 2143120323 its reverse (3230213412), we get a palindrome (5373333735).

The spelling of 2143120323 in words is "two billion, one hundred forty-three million, one hundred twenty thousand, three hundred twenty-three".