21113302 has 8 divisors (see below), whose sum is σ = 36194256. Its totient is φ = 9048552.

The previous prime is 21113299. The next prime is 21113317. The reversal of 21113302 is 20331112.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754033 + ... + 754060.

It is an arithmetic number, because the mean of its divisors is an integer number (4524282).

Almost surely, 2^21113302 is an apocalyptic number.

21113302 is a deficient number, since it is larger than the sum of its proper divisors (15080954).

21113302 is a wasteful number, since it uses less digits than its factorization.

21113302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508102.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 21113302 is about 4594.9213268564. The cubic root of 21113302 is about 276.3877051419.

Adding to 21113302 its reverse (20331112), we get a palindrome (41444414).

The spelling of 21113302 in words is "twenty-one million, one hundred thirteen thousand, three hundred two".