21833103 has 8 divisors (see below), whose sum is σ = 29163568. Its totient is φ = 14529024.

The previous prime is 21833081. The next prime is 21833107. The reversal of 21833103 is 30133812.

It is a happy number.

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

It is not a de Polignac number, because 21833103 - 2⁶ = 21833039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21833103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21833107) 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, 4576 + ... + 8037.

It is an arithmetic number, because the mean of its divisors is an integer number (3645446).

Almost surely, 2^21833103 is an apocalyptic number.

21833103 is a deficient number, since it is larger than the sum of its proper divisors (7330465).

21833103 is a wasteful number, since it uses less digits than its factorization.

21833103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13193.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 21833103 is about 4672.5906090733. The cubic root of 21833103 is about 279.4935701278.

Adding to 21833103 its reverse (30133812), we get a palindrome (51966915).

The spelling of 21833103 in words is "twenty-one million, eight hundred thirty-three thousand, one hundred three".