213320332 has 12 divisors (see below), whose sum is σ = 374388840. Its totient is φ = 106352096.

The previous prime is 213320323. The next prime is 213320333. The reversal of 213320332 is 233023312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213320333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75457 + ... + 78232.

It is an arithmetic number, because the mean of its divisors is an integer number (31199070).

Almost surely, 2^213320332 is an apocalyptic number.

It is an amenable number.

213320332 is a deficient number, since it is larger than the sum of its proper divisors (161068508).

213320332 is a wasteful number, since it uses less digits than its factorization.

213320332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154040 (or 154038 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 213320332 is about 14605.4897898016. The cubic root of 213320332 is about 597.5084942450.

Adding to 213320332 its reverse (233023312), we get a palindrome (446343644).

The spelling of 213320332 in words is "two hundred thirteen million, three hundred twenty thousand, three hundred thirty-two".