21196303 has 8 divisors (see below), whose sum is σ = 22463280. Its totient is φ = 19965120.

The previous prime is 21196283. The next prime is 21196309. The reversal of 21196303 is 30369112.

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 21196303 - 2⁹ = 21195791 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 (21196309) 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, 7725 + ... + 10102.

It is an arithmetic number, because the mean of its divisors is an integer number (2807910).

Almost surely, 2^21196303 is an apocalyptic number.

21196303 is a deficient number, since it is larger than the sum of its proper divisors (1266977).

21196303 is a wasteful number, since it uses less digits than its factorization.

21196303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17897.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 21196303 is about 4603.9442872389. The cubic root of 21196303 is about 276.7494117110.

The spelling of 21196303 in words is "twenty-one million, one hundred ninety-six thousand, three hundred three".