213322312 has 32 divisors (see below), whose sum is σ = 467755200. Its totient is φ = 89296704.

The previous prime is 213322261. The next prime is 213322313. The reversal of 213322312 is 213223312.

It is a self number, because there is not a number n which added to its sum of digits gives 213322312.

It is not an unprimeable number, because it can be changed into a prime (213322313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41887 + ... + 46702.

It is an arithmetic number, because the mean of its divisors is an integer number (14617350).

Almost surely, 2^213322312 is an apocalyptic number.

It is an amenable number.

213322312 is an abundant number, since it is smaller than the sum of its proper divisors (254432888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213322312 is a wasteful number, since it uses less digits than its factorization.

213322312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88645 (or 88641 counting only the distinct ones).

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

The square root of 213322312 is about 14605.5575723763. The cubic root of 213322312 is about 597.5103428939.

Adding to 213322312 its reverse (213223312), we get a palindrome (426545624).

The spelling of 213322312 in words is "two hundred thirteen million, three hundred twenty-two thousand, three hundred twelve".