213641303 has 4 divisors (see below), whose sum is σ = 215532048. Its totient is φ = 211750560.

The previous prime is 213641299. The next prime is 213641317. The reversal of 213641303 is 303146312.

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 213641303 - 2² = 213641299 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 (213641353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945203 + ... + 945428.

It is an arithmetic number, because the mean of its divisors is an integer number (53883012).

Almost surely, 2^213641303 is an apocalyptic number.

213641303 is a deficient number, since it is larger than the sum of its proper divisors (1890745).

213641303 is a wasteful number, since it uses less digits than its factorization.

213641303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890744.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 213641303 is about 14616.4736855372. The cubic root of 213641303 is about 597.8080231103.

Adding to 213641303 its reverse (303146312), we get a palindrome (516787615).

The spelling of 213641303 in words is "two hundred thirteen million, six hundred forty-one thousand, three hundred three".