21323030123303 has 8 divisors (see below), whose sum is σ = 21562703292240. Its totient is φ = 21083358922560.

The previous prime is 21323030123261. The next prime is 21323030123309. The reversal of 21323030123303 is 30332103032312.

It is a happy number.

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 21323030123303 - 2⁴⁴ = 3730844078887 is a prime.

It is a super-2 number, since 2×21323030123303² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323030123309) 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 7 ways as a sum of consecutive naturals, for example, 39082301 + ... + 39624137.

It is an arithmetic number, because the mean of its divisors is an integer number (2695337911530).

Almost surely, 2^{21323030123303} is an apocalyptic number.

21323030123303 is a deficient number, since it is larger than the sum of its proper divisors (239673168937).

21323030123303 is an equidigital number, since it uses as much as digits as its factorization.

21323030123303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984097.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 21323030123303 its reverse (30332103032312), we get a palindrome (51655133155615).

The spelling of 21323030123303 in words is "twenty-one trillion, three hundred twenty-three billion, thirty million, one hundred twenty-three thousand, three hundred three".