2143334231 has 4 divisors (see below), whose sum is σ = 2164555464. Its totient is φ = 2122113000.

The previous prime is 2143334129. The next prime is 2143334243. The reversal of 2143334231 is 1324333412.

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 2143334231 - 2¹⁰ = 2143333207 is a prime.

It is a super-2 number, since 2×2143334231² = 9187763251552722722, which contains 22 as substring.

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 2143334231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143354231) 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, 10610465 + ... + 10610666.

It is an arithmetic number, because the mean of its divisors is an integer number (541138866).

Almost surely, 2^2143334231 is an apocalyptic number.

2143334231 is a deficient number, since it is larger than the sum of its proper divisors (21221233).

2143334231 is a wasteful number, since it uses less digits than its factorization.

2143334231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21221232.

The product of its digits is 5184, while the sum is 26.

The square root of 2143334231 is about 46296.1578427411. The cubic root of 2143334231 is about 1289.3276609799.

Adding to 2143334231 its reverse (1324333412), we get a palindrome (3467667643).

The spelling of 2143334231 in words is "two billion, one hundred forty-three million, three hundred thirty-four thousand, two hundred thirty-one".