203211132 has 48 divisors (see below), whose sum is σ = 503822592. Its totient is φ = 63527680.

The previous prime is 203211121. The next prime is 203211133. The reversal of 203211132 is 231112302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203211133) 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 15 ways as a sum of consecutive naturals, for example, 61843 + ... + 65045.

It is an arithmetic number, because the mean of its divisors is an integer number (10496304).

Almost surely, 2^203211132 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 203211132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251911296).

203211132 is an abundant number, since it is smaller than the sum of its proper divisors (300611460).

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

203211132 is a wasteful number, since it uses less digits than its factorization.

203211132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538 (or 3536 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 203211132 is about 14255.2142039325. The cubic root of 203211132 is about 587.9167474339.

Adding to 203211132 its reverse (231112302), we get a palindrome (434323434).

The spelling of 203211132 in words is "two hundred three million, two hundred eleven thousand, one hundred thirty-two".