200512312 has 160 divisors (see below), whose sum is σ = 522330480. Its totient is φ = 71124480.

The previous prime is 200512261. The next prime is 200512337. The reversal of 200512312 is 213215002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2746708 + ... + 2746780.

Almost surely, 2^200512312 is an apocalyptic number.

200512312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200512312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261165240).

200512312 is an abundant number, since it is smaller than the sum of its proper divisors (321818168).

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

200512312 is a wasteful number, since it uses less digits than its factorization.

200512312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 200512312 is about 14160.2370036663. The cubic root of 200512312 is about 585.3024583467.

Adding to 200512312 its reverse (213215002), we get a palindrome (413727314).

The spelling of 200512312 in words is "two hundred million, five hundred twelve thousand, three hundred twelve".