21233143310033 has 16 divisors (see below), whose sum is σ = 21969505918800. Its totient is φ = 20505536870400.

The previous prime is 21233143310021. The next prime is 21233143310083. The reversal of 21233143310033 is 33001334133212.

It can be written as a sum of positive squares in 8 ways, for example, as 5968556821969 + 15264586488064 = 2443063^2 + 3906992^2 .

It is not a de Polignac number, because 21233143310033 - 2⁴⁰ = 20133631682257 is a prime.

It is a super-2 number, since 2×21233143310033² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21233143309978 and 21233143310005.

It is not an unprimeable number, because it can be changed into a prime (21233143310083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6088253 + ... + 8918133.

It is an arithmetic number, because the mean of its divisors is an integer number (1373094119925).

Almost surely, 2^{21233143310033} is an apocalyptic number.

It is an amenable number.

21233143310033 is a deficient number, since it is larger than the sum of its proper divisors (736362608767).

21233143310033 is a wasteful number, since it uses less digits than its factorization.

21233143310033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831428.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 21233143310033 its reverse (33001334133212), we get a palindrome (54234477443245).

The spelling of 21233143310033 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred forty-three million, three hundred ten thousand, thirty-three".