21333344103 has 12 divisors (see below), whose sum is σ = 30822857520. Its totient is φ = 14218524576.

The previous prime is 21333344057. The next prime is 21333344113. The reversal of 21333344103 is 30144333312.

21333344103 is a `hidden beast` number, since 213 + 3 + 3 + 3 + 441 + 0 + 3 = 666.

It is not a de Polignac number, because 21333344103 - 2¹⁶ = 21333278567 is a prime.

It is a super-2 number, since 2×21333344103² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21333344113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272038 + ... + 341571.

It is an arithmetic number, because the mean of its divisors is an integer number (2568571460).

Almost surely, 2^21333344103 is an apocalyptic number.

21333344103 is a deficient number, since it is larger than the sum of its proper divisors (9489513417).

21333344103 is a wasteful number, since it uses less digits than its factorization.

21333344103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617478 (or 617475 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21333344103 its reverse (30144333312), we get a palindrome (51477677415).

The spelling of 21333344103 in words is "twenty-one billion, three hundred thirty-three million, three hundred forty-four thousand, one hundred three".