213130332 has 48 divisors (see below), whose sum is σ = 570393600. Its totient is φ = 68750640.

The previous prime is 213130327. The next prime is 213130409. The reversal of 213130332 is 233031312.

213130332 is a `hidden beast` number, since 21 + 313 + 0 + 332 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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, 28482 + ... + 35177.

It is an arithmetic number, because the mean of its divisors is an integer number (11883200).

Almost surely, 2^213130332 is an apocalyptic number.

It is an amenable number.

213130332 is an abundant number, since it is smaller than the sum of its proper divisors (357263268).

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

213130332 is a wasteful number, since it uses less digits than its factorization.

213130332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63703 (or 63695 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 213130332 is about 14598.9839372471. The cubic root of 213130332 is about 597.3310454058.

Adding to 213130332 its reverse (233031312), we get a palindrome (446161644).

The spelling of 213130332 in words is "two hundred thirteen million, one hundred thirty thousand, three hundred thirty-two".