210003312 has 80 divisors (see below), whose sum is σ = 588524832. Its totient is φ = 64266240.

The previous prime is 210003289. The next prime is 210003319. The reversal of 210003312 is 213300012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210003319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30318 + ... + 36594.

Almost surely, 2^210003312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210003312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294262416).

210003312 is an abundant number, since it is smaller than the sum of its proper divisors (378521520).

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

210003312 is a wasteful number, since it uses less digits than its factorization.

210003312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346 (or 6340 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 210003312 is about 14491.4910205955. The cubic root of 210003312 is about 594.3953200646.

Adding to 210003312 its reverse (213300012), we get a palindrome (423303324).

The spelling of 210003312 in words is "two hundred ten million, three thousand, three hundred twelve".