213320435 has 4 divisors (see below), whose sum is σ = 255984528. Its totient is φ = 170656344.

The previous prime is 213320413. The next prime is 213320441. The reversal of 213320435 is 534023312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213320435 - 2⁸ = 213320179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213320435.

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, 21332039 + ... + 21332048.

It is an arithmetic number, because the mean of its divisors is an integer number (63996132).

Almost surely, 2^213320435 is an apocalyptic number.

213320435 is a deficient number, since it is larger than the sum of its proper divisors (42664093).

213320435 is an equidigital number, since it uses as much as digits as its factorization.

213320435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42664092.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 213320435 is about 14605.4933158726. The cubic root of 213320435 is about 597.5085904124.

Adding to 213320435 its reverse (534023312), we get a palindrome (747343747).

The spelling of 213320435 in words is "two hundred thirteen million, three hundred twenty thousand, four hundred thirty-five".