2143121343 has 8 divisors (see below), whose sum is σ = 3117267456. Its totient is φ = 1298861400.

The previous prime is 2143121341. The next prime is 2143121413. The reversal of 2143121343 is 3431213412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2143121343 - 2¹ = 2143121341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143121341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32471503 + ... + 32471568.

It is an arithmetic number, because the mean of its divisors is an integer number (389658432).

Almost surely, 2^2143121343 is an apocalyptic number.

2143121343 is a deficient number, since it is larger than the sum of its proper divisors (974146113).

2143121343 is a wasteful number, since it uses less digits than its factorization.

2143121343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64943085.

The product of its digits is 1728, while the sum is 24.

The square root of 2143121343 is about 46293.8585883700. The cubic root of 2143121343 is about 1289.2849718104.

Adding to 2143121343 its reverse (3431213412), we get a palindrome (5574334755).

The spelling of 2143121343 in words is "two billion, one hundred forty-three million, one hundred twenty-one thousand, three hundred forty-three".