21322321103 has 8 divisors (see below), whose sum is σ = 21646016208. Its totient is φ = 21000930304.

The previous prime is 21322321093. The next prime is 21322321109. The reversal of 21322321103 is 30112322312.

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 21322321103 - 2¹⁶ = 21322255567 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 (21322321109) 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, 557426 + ... + 594447.

It is an arithmetic number, because the mean of its divisors is an integer number (2705752026).

Almost surely, 2^21322321103 is an apocalyptic number.

21322321103 is a deficient number, since it is larger than the sum of its proper divisors (323695105).

21322321103 is a wasteful number, since it uses less digits than its factorization.

21322321103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152153.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21322321103 its reverse (30112322312), we get a palindrome (51434643415).

The spelling of 21322321103 in words is "twenty-one billion, three hundred twenty-two million, three hundred twenty-one thousand, one hundred three".