212143303 has 8 divisors (see below), whose sum is σ = 223660800. Its totient is φ = 200661048.

The previous prime is 212143301. The next prime is 212143319. The reversal of 212143303 is 303341212.

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

It is a cyclic number.

It is not a de Polignac number, because 212143303 - 2¹ = 212143301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212143301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4050 + ... + 20992.

It is an arithmetic number, because the mean of its divisors is an integer number (27957600).

Almost surely, 2^212143303 is an apocalyptic number.

212143303 is a deficient number, since it is larger than the sum of its proper divisors (11517497).

212143303 is a wasteful number, since it uses less digits than its factorization.

212143303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17621.

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

The square root of 212143303 is about 14565.1399924615. The cubic root of 212143303 is about 596.4075173026.

Adding to 212143303 its reverse (303341212), we get a palindrome (515484515).

The spelling of 212143303 in words is "two hundred twelve million, one hundred forty-three thousand, three hundred three".