213043334 has 16 divisors (see below), whose sum is σ = 368570400. Its totient is φ = 90465984.

The previous prime is 213043289. The next prime is 213043351. The reversal of 213043334 is 433340312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68279 + ... + 71330.

It is an arithmetic number, because the mean of its divisors is an integer number (23035650).

Almost surely, 2^213043334 is an apocalyptic number.

213043334 is a deficient number, since it is larger than the sum of its proper divisors (155527066).

213043334 is a wasteful number, since it uses less digits than its factorization.

213043334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139727.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 213043334 is about 14596.0040422028. The cubic root of 213043334 is about 597.2497591835.

Adding to 213043334 its reverse (433340312), we get a palindrome (646383646).

The spelling of 213043334 in words is "two hundred thirteen million, forty-three thousand, three hundred thirty-four".