213331132 has 12 divisors (see below), whose sum is σ = 426662320. Its totient is φ = 91427616.

The previous prime is 213331109. The next prime is 213331169. The reversal of 213331132 is 231133312.

213331132 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

213331132 is an admirable number.

213331132 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3809457 + ... + 3809512.

Almost surely, 2^213331132 is an apocalyptic number.

It is an amenable number.

213331132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

213331132 is a wasteful number, since it uses less digits than its factorization.

213331132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7618980 (or 7618978 counting only the distinct ones).

The product of its digits is 324, while the sum is 19.

The square root of 213331132 is about 14605.8595091148. The cubic root of 213331132 is about 597.5185776452.

Adding to 213331132 its reverse (231133312), we get a palindrome (444464444).

The spelling of 213331132 in words is "two hundred thirteen million, three hundred thirty-one thousand, one hundred thirty-two".