21333122103 has 8 divisors (see below), whose sum is σ = 28458400000. Its totient is φ = 14214962808.

The previous prime is 21333122051. The next prime is 21333122123. The reversal of 21333122103 is 30122133312.

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

It is not a de Polignac number, because 21333122103 - 2⁹ = 21333121591 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 21333122103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21333122123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1772653 + ... + 1784646.

It is an arithmetic number, because the mean of its divisors is an integer number (3557300000).

Almost surely, 2^21333122103 is an apocalyptic number.

21333122103 is a deficient number, since it is larger than the sum of its proper divisors (7125277897).

21333122103 is a wasteful number, since it uses less digits than its factorization.

21333122103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559301.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21333122103 its reverse (30122133312), we get a palindrome (51455255415).

The spelling of 21333122103 in words is "twenty-one billion, three hundred thirty-three million, one hundred twenty-two thousand, one hundred three".