21103333032223 has 4 divisors (see below), whose sum is σ = 22726666342408. Its totient is φ = 19479999722040.

The previous prime is 21103333032149. The next prime is 21103333032259. The reversal of 21103333032223 is 32223033330112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21103333032223 - 2³⁷ = 20965894078751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21103333032191 and 21103333032200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103333032263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 811666655073 + ... + 811666655098.

It is an arithmetic number, because the mean of its divisors is an integer number (5681666585602).

Almost surely, 2^{21103333032223} is an apocalyptic number.

21103333032223 is a deficient number, since it is larger than the sum of its proper divisors (1623333310185).

21103333032223 is a wasteful number, since it uses less digits than its factorization.

21103333032223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623333310184.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 21103333032223 its reverse (32223033330112), we get a palindrome (53326366362335).

The spelling of 21103333032223 in words is "twenty-one trillion, one hundred three billion, three hundred thirty-three million, thirty-two thousand, two hundred twenty-three".