2143303312 has 20 divisors (see below), whose sum is σ = 4153529916. Its totient is φ = 1071424640.

The previous prime is 2143303301. The next prime is 2143303333. The reversal of 2143303312 is 2133033412.

It can be written as a sum of positive squares in 2 ways, for example, as 1047428496 + 1095874816 = 32364^2 + 33104^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84498 + ... + 106894.

Almost surely, 2^2143303312 is an apocalyptic number.

It is an amenable number.

2143303312 is a deficient number, since it is larger than the sum of its proper divisors (2010226604).

2143303312 is a wasteful number, since it uses less digits than its factorization.

2143303312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28386 (or 28380 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 2143303312 is about 46295.8239153382. The cubic root of 2143303312 is about 1289.3214611515.

Adding to 2143303312 its reverse (2133033412), we get a palindrome (4276336724).

The spelling of 2143303312 in words is "two billion, one hundred forty-three million, three hundred three thousand, three hundred twelve".