213313543 has 4 divisors (see below), whose sum is σ = 213820648. Its totient is φ = 212806440.

The previous prime is 213313517. The next prime is 213313567. The reversal of 213313543 is 345313312.

213313543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213313543 - 2⁹ = 213313031 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 (213313343) 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, 252921 + ... + 253762.

It is an arithmetic number, because the mean of its divisors is an integer number (53455162).

Almost surely, 2^213313543 is an apocalyptic number.

213313543 is a deficient number, since it is larger than the sum of its proper divisors (507105).

213313543 is an equidigital number, since it uses as much as digits as its factorization.

213313543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507104.

The product of its digits is 3240, while the sum is 25.

The square root of 213313543 is about 14605.2573753426. The cubic root of 213313543 is about 597.5021555334.

Adding to 213313543 its reverse (345313312), we get a palindrome (558626855).

The spelling of 213313543 in words is "two hundred thirteen million, three hundred thirteen thousand, five hundred forty-three".