2143321412 has 24 divisors (see below), whose sum is σ = 3931664352. Its totient is φ = 1021204800.

The previous prime is 2143321381. The next prime is 2143321417. The reversal of 2143321412 is 2141233412.

It is not an unprimeable number, because it can be changed into a prime (2143321417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144914 + ... + 159017.

It is an arithmetic number, because the mean of its divisors is an integer number (163819348).

Almost surely, 2^2143321412 is an apocalyptic number.

It is an amenable number.

2143321412 is a deficient number, since it is larger than the sum of its proper divisors (1788342940).

2143321412 is a wasteful number, since it uses less digits than its factorization.

2143321412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304019 (or 304017 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 2143321412 is about 46296.0193969201. The cubic root of 2143321412 is about 1289.3250905418.

Adding to 2143321412 its reverse (2141233412), we get a palindrome (4284554824).

The spelling of 2143321412 in words is "two billion, one hundred forty-three million, three hundred twenty-one thousand, four hundred twelve".