2320143121 has 4 divisors (see below), whose sum is σ = 2320252452. Its totient is φ = 2320033792.

The previous prime is 2320143043. The next prime is 2320143139. The reversal of 2320143121 is 1213410232.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1028100096 + 1292043025 = 32064^2 + 35945^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320143121 - 2²⁹ = 1783272209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2320123121) 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, 11440 + ... + 69073.

It is an arithmetic number, because the mean of its divisors is an integer number (580063113).

Almost surely, 2^2320143121 is an apocalyptic number.

It is an amenable number.

2320143121 is a deficient number, since it is larger than the sum of its proper divisors (109331).

2320143121 is an equidigital number, since it uses as much as digits as its factorization.

2320143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109330.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2320143121 is about 48167.8639862720. The cubic root of 2320143121 is about 1323.8484112599.

Adding to 2320143121 its reverse (1213410232), we get a palindrome (3533553353).

The spelling of 2320143121 in words is "two billion, three hundred twenty million, one hundred forty-three thousand, one hundred twenty-one".