213324013 has 4 divisors (see below), whose sum is σ = 243798880. Its totient is φ = 182849148.

The previous prime is 213323987. The next prime is 213324017. The reversal of 213324013 is 310423312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213324013 - 2⁹ = 213323501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213324017) 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, 15237423 + ... + 15237436.

It is an arithmetic number, because the mean of its divisors is an integer number (60949720).

Almost surely, 2^213324013 is an apocalyptic number.

It is an amenable number.

213324013 is a deficient number, since it is larger than the sum of its proper divisors (30474867).

213324013 is an equidigital number, since it uses as much as digits as its factorization.

213324013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30474866.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213324013 is about 14605.6158035189. The cubic root of 213324013 is about 597.5119310421.

Adding to 213324013 its reverse (310423312), we get a palindrome (523747325).

The spelling of 213324013 in words is "two hundred thirteen million, three hundred twenty-four thousand, thirteen".