2143213112 has 8 divisors (see below), whose sum is σ = 4018524600. Its totient is φ = 1071606552.

The previous prime is 2143213109. The next prime is 2143213139. The reversal of 2143213112 is 2113123412.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133950812 + ... + 133950827.

It is an arithmetic number, because the mean of its divisors is an integer number (502315575).

Almost surely, 2^2143213112 is an apocalyptic number.

It is an amenable number.

2143213112 is a deficient number, since it is larger than the sum of its proper divisors (1875311488).

2143213112 is a wasteful number, since it uses less digits than its factorization.

2143213112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267901645 (or 267901641 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 2143213112 is about 46294.8497351487. The cubic root of 2143213112 is about 1289.3033740510.

Adding to 2143213112 its reverse (2113123412), we get a palindrome (4256336524).

The spelling of 2143213112 in words is "two billion, one hundred forty-three million, two hundred thirteen thousand, one hundred twelve".