213320252 has 6 divisors (see below), whose sum is σ = 373310448. Its totient is φ = 106660124.

The previous prime is 213320203. The next prime is 213320257. The reversal of 213320252 is 252023312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213320257) 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 as a sum of consecutive naturals, namely, 26665028 + ... + 26665035.

It is an arithmetic number, because the mean of its divisors is an integer number (62218408).

Almost surely, 2^213320252 is an apocalyptic number.

It is an amenable number.

213320252 is a deficient number, since it is larger than the sum of its proper divisors (159990196).

213320252 is a wasteful number, since it uses less digits than its factorization.

213320252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53330067 (or 53330065 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 213320252 is about 14605.4870511051. The cubic root of 213320252 is about 597.5084195519.

Adding to 213320252 its reverse (252023312), we get a palindrome (465343564).

The spelling of 213320252 in words is "two hundred thirteen million, three hundred twenty thousand, two hundred fifty-two".