212133343 has 8 divisors (see below), whose sum is σ = 213621408. Its totient is φ = 210649824.

The previous prime is 212133331. The next prime is 212133367. The reversal of 212133343 is 343331212.

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-212133343 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 (212133373) 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, 199030 + ... + 200092.

It is an arithmetic number, because the mean of its divisors is an integer number (26702676).

Almost surely, 2^212133343 is an apocalyptic number.

212133343 is a deficient number, since it is larger than the sum of its proper divisors (1488065).

212133343 is a wasteful number, since it uses less digits than its factorization.

212133343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273.

The product of its digits is 1296, while the sum is 22.

The square root of 212133343 is about 14564.7980761835. The cubic root of 212133343 is about 596.3981834990.

Adding to 212133343 its reverse (343331212), we get a palindrome (555464555).

The spelling of 212133343 in words is "two hundred twelve million, one hundred thirty-three thousand, three hundred forty-three".