2143313143 has 4 divisors (see below), whose sum is σ = 2145797568. Its totient is φ = 2140828720.

The previous prime is 2143313093. The next prime is 2143313147. The reversal of 2143313143 is 3413133412.

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

It is a cyclic number.

It is not a de Polignac number, because 2143313143 - 2²⁵ = 2109758711 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 (2143313147) 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, 1240918 + ... + 1242643.

It is an arithmetic number, because the mean of its divisors is an integer number (536449392).

Almost surely, 2^2143313143 is an apocalyptic number.

2143313143 is a deficient number, since it is larger than the sum of its proper divisors (2484425).

2143313143 is an equidigital number, since it uses as much as digits as its factorization.

2143313143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484424.

The product of its digits is 2592, while the sum is 25.

The square root of 2143313143 is about 46295.9300910998. The cubic root of 2143313143 is about 1289.3234324543.

Adding to 2143313143 its reverse (3413133412), we get a palindrome (5556446555).

The spelling of 2143313143 in words is "two billion, one hundred forty-three million, three hundred thirteen thousand, one hundred forty-three".