213142012 has 12 divisors (see below), whose sum is σ = 389216016. Its totient is φ = 101937440.

The previous prime is 213142009. The next prime is 213142049. The reversal of 213142012 is 210241312.

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, 1158289 + ... + 1158472.

It is an arithmetic number, because the mean of its divisors is an integer number (32434668).

Almost surely, 2^213142012 is an apocalyptic number.

It is an amenable number.

213142012 is a deficient number, since it is larger than the sum of its proper divisors (176074004).

213142012 is a wasteful number, since it uses less digits than its factorization.

213142012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316788 (or 2316786 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 213142012 is about 14599.3839596060. The cubic root of 213142012 is about 597.3419568813.

Adding to 213142012 its reverse (210241312), we get a palindrome (423383324).

The spelling of 213142012 in words is "two hundred thirteen million, one hundred forty-two thousand, twelve".