21330203311033 has 2 divisors, whose sum is σ = 21330203311034. Its totient is φ = 21330203311032.

The previous prime is 21330203310989. The next prime is 21330203311069. The reversal of 21330203311033 is 33011330203312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13940575429264 + 7389627881769 = 3733708^2 + 2718387^2 .

It is a cyclic number.

It is not a de Polignac number, because 21330203311033 - 2²⁵ = 21330169756601 is a prime.

It is a super-2 number, since 2×21330203311033² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21330203310989 and 21330203311007.

It is not a weakly prime, because it can be changed into another prime (21330203311133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10665101655516 + 10665101655517.

It is an arithmetic number, because the mean of its divisors is an integer number (10665101655517).

Almost surely, 2^{21330203311033} is an apocalyptic number.

It is an amenable number.

21330203311033 is a deficient number, since it is larger than the sum of its proper divisors (1).

21330203311033 is an equidigital number, since it uses as much as digits as its factorization.

21330203311033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 21330203311033 its reverse (33011330203312), we get a palindrome (54341533514345).

The spelling of 21330203311033 in words is "twenty-one trillion, three hundred thirty billion, two hundred three million, three hundred eleven thousand, thirty-three".