213203422 has 16 divisors (see below), whose sum is σ = 334785312. Its totient is φ = 101638240.

The previous prime is 213203413. The next prime is 213203429. The reversal of 213203422 is 224302312.

It is a self number, because there is not a number n which added to its sum of digits gives 213203422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213203429) 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, 7272 + ... + 21892.

It is an arithmetic number, because the mean of its divisors is an integer number (20924082).

Almost surely, 2^213203422 is an apocalyptic number.

213203422 is a deficient number, since it is larger than the sum of its proper divisors (121581890).

213203422 is a wasteful number, since it uses less digits than its factorization.

213203422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14963.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 213203422 is about 14601.4869790717. The cubic root of 213203422 is about 597.3993196490.

Adding to 213203422 its reverse (224302312), we get a palindrome (437505734).

It can be divided in two parts, 21320 and 3422, that added together give a palindrome (24742).

The spelling of 213203422 in words is "two hundred thirteen million, two hundred three thousand, four hundred twenty-two".