200312 has 32 divisors (see below), whose sum is σ = 444000. Its totient is φ = 84672.

The previous prime is 200297. The next prime is 200323. The reversal of 200312 is 213002.

200312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an Ulam number.

It is a plaindrome in base 9.

It is a nialpdrome in base 14.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 200312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2708 + ... + 2780.

It is an arithmetic number, because the mean of its divisors is an integer number (13875).

2²⁰⁰³¹² 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 200312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222000).

200312 is an abundant number, since it is smaller than the sum of its proper divisors (243688).

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

200312 is an equidigital number, since it uses as much as digits as its factorization.

200312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 200312 is about 447.5622861681. The cubic root of 200312 is about 58.5107487493.

Adding to 200312 its reverse (213002), we get a palindrome (413314).

It can be divided in two parts, 200 and 312, that added together give a 9-th power (512 = 2⁹).

The spelling of 200312 in words is "two hundred thousand, three hundred twelve", and thus it is an iban number.