213043312 has 20 divisors (see below), whose sum is σ = 414006736. Its totient is φ = 106202880.

The previous prime is 213043289. The next prime is 213043351. The reversal of 213043312 is 213340312.

It is a self number, because there is not a number n which added to its sum of digits gives 213043312.

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, 14364 + ... + 25147.

Almost surely, 2^213043312 is an apocalyptic number.

It is an amenable number.

213043312 is a deficient number, since it is larger than the sum of its proper divisors (200963424).

213043312 is a wasteful number, since it uses less digits than its factorization.

213043312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39856 (or 39850 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213043312 is about 14596.0032885718. The cubic root of 213043312 is about 597.2497386251.

Adding to 213043312 its reverse (213340312), we get a palindrome (426383624).

The spelling of 213043312 in words is "two hundred thirteen million, forty-three thousand, three hundred twelve".