21233003303033 has 2 divisors, whose sum is σ = 21233003303034. Its totient is φ = 21233003303032.

The previous prime is 21233003303023. The next prime is 21233003303041. The reversal of 21233003303033 is 33030330033212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20887020533824 + 345982769209 = 4570232^2 + 588203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21233003303033 is a prime.

It is a super-2 number, since 2×21233003303033² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21233003302993 and 21233003303011.

It is not a weakly prime, because it can be changed into another prime (21233003303003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616501651516 + 10616501651517.

It is an arithmetic number, because the mean of its divisors is an integer number (10616501651517).

Almost surely, 2^{21233003303033} is an apocalyptic number.

It is an amenable number.

21233003303033 is a deficient number, since it is larger than the sum of its proper divisors (1).

21233003303033 is an equidigital number, since it uses as much as digits as its factorization.

21233003303033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 26.

Adding to 21233003303033 its reverse (33030330033212), we get a palindrome (54263333336245).

The spelling of 21233003303033 in words is "twenty-one trillion, two hundred thirty-three billion, three million, three hundred three thousand, thirty-three".