2143322306 has 4 divisors (see below), whose sum is σ = 3214983462. Its totient is φ = 1071661152.

The previous prime is 2143322257. The next prime is 2143322317. The reversal of 2143322306 is 6032233412.

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

It can be written as a sum of positive squares in only one way, i.e., 2055806281 + 87516025 = 45341^2 + 9355^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535830575 + ... + 535830578.

Almost surely, 2^2143322306 is an apocalyptic number.

2143322306 is a deficient number, since it is larger than the sum of its proper divisors (1071661156).

2143322306 is a wasteful number, since it uses less digits than its factorization.

2143322306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071661155.

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

The square root of 2143322306 is about 46296.0290521768. The cubic root of 2143322306 is about 1289.3252698050.

Adding to 2143322306 its reverse (6032233412), we get a palindrome (8175555718).

The spelling of 2143322306 in words is "two billion, one hundred forty-three million, three hundred twenty-two thousand, three hundred six".