21301334 has 8 divisors (see below), whose sum is σ = 32012688. Its totient is φ = 10630440.

The previous prime is 21301331. The next prime is 21301339. The reversal of 21301334 is 43310312.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301331) 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, 8762 + ... + 10925.

It is an arithmetic number, because the mean of its divisors is an integer number (4001586).

Almost surely, 2^21301334 is an apocalyptic number.

21301334 is a deficient number, since it is larger than the sum of its proper divisors (10711354).

21301334 is a wasteful number, since it uses less digits than its factorization.

21301334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20230.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 21301334 is about 4615.3368241115. The cubic root of 21301334 is about 277.2057709833.

Adding to 21301334 its reverse (43310312), we get a palindrome (64611646).

The spelling of 21301334 in words is "twenty-one million, three hundred one thousand, three hundred thirty-four".