21314343 has 8 divisors (see below), whose sum is σ = 28738800. Its totient is φ = 14049728.

The previous prime is 21314327. The next prime is 21314357. The reversal of 21314343 is 34341312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21314343 - 2⁴ = 21314327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21314303) 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 in 7 ways as a sum of consecutive naturals, for example, 39648 + ... + 40181.

It is an arithmetic number, because the mean of its divisors is an integer number (3592350).

Almost surely, 2^21314343 is an apocalyptic number.

21314343 is a deficient number, since it is larger than the sum of its proper divisors (7424457).

21314343 is an equidigital number, since it uses as much as digits as its factorization.

21314343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79921.

The product of its digits is 864, while the sum is 21.

The square root of 21314343 is about 4616.7459319308. The cubic root of 21314343 is about 277.2621905486.

Adding to 21314343 its reverse (34341312), we get a palindrome (55655655).

The spelling of 21314343 in words is "twenty-one million, three hundred fourteen thousand, three hundred forty-three".