212321230213 has 8 divisors (see below), whose sum is σ = 215087419008. Its totient is φ = 209559996384.

The previous prime is 212321230189. The next prime is 212321230217. The reversal of 212321230213 is 312032123212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212321230213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212321230217) 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, 1152445 + ... + 1323922.

It is an arithmetic number, because the mean of its divisors is an integer number (26885927376).

Almost surely, 2^212321230213 is an apocalyptic number.

It is an amenable number.

212321230213 is a deficient number, since it is larger than the sum of its proper divisors (2766188795).

212321230213 is a wasteful number, since it uses less digits than its factorization.

212321230213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477483.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212321230213 its reverse (312032123212), we get a palindrome (524353353425).

The spelling of 212321230213 in words is "two hundred twelve billion, three hundred twenty-one million, two hundred thirty thousand, two hundred thirteen".