213320132 has 6 divisors (see below), whose sum is σ = 373310238. Its totient is φ = 106660064.

The previous prime is 213320113. The next prime is 213320179. The reversal of 213320132 is 231023312.

It can be written as a sum of positive squares in only one way, i.e., 169416256 + 43903876 = 13016^2 + 6626^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213320132.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26665013 + ... + 26665020.

It is an arithmetic number, because the mean of its divisors is an integer number (62218373).

Almost surely, 2^213320132 is an apocalyptic number.

It is an amenable number.

213320132 is a deficient number, since it is larger than the sum of its proper divisors (159990106).

213320132 is a wasteful number, since it uses less digits than its factorization.

213320132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53330037 (or 53330035 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213320132 is about 14605.4829430594. The cubic root of 213320132 is about 597.5083075122.

Adding to 213320132 its reverse (231023312), we get a palindrome (444343444).

The spelling of 213320132 in words is "two hundred thirteen million, three hundred twenty thousand, one hundred thirty-two".