2143204312 has 16 divisors (see below), whose sum is σ = 4021980840. Its totient is φ = 1070676096.

The previous prime is 2143204309. The next prime is 2143204321. The reversal of 2143204312 is 2134023412.

It is a super-3 number, since 3×2143204312³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

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, 105873 + ... + 124480.

Almost surely, 2^2143204312 is an apocalyptic number.

It is an amenable number.

2143204312 is a deficient number, since it is larger than the sum of its proper divisors (1878776528).

2143204312 is a wasteful number, since it uses less digits than its factorization.

2143204312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231522 (or 231518 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2143204312 is about 46294.7546920815. The cubic root of 2143204312 is about 1289.3016094286.

Adding to 2143204312 its reverse (2134023412), we get a palindrome (4277227724).

Subtracting from 2143204312 its reverse (2134023412), we obtain a square (9180900 = 3030²).

The spelling of 2143204312 in words is "two billion, one hundred forty-three million, two hundred four thousand, three hundred twelve".