20933306033 has 2 divisors, whose sum is σ = 20933306034. Its totient is φ = 20933306032.

The previous prime is 20933306021. The next prime is 20933306039. The reversal of 20933306033 is 33060333902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18905425009 + 2027881024 = 137497^2 + 45032^2 .

It is a cyclic number.

It is not a de Polignac number, because 20933306033 - 2¹² = 20933301937 is a prime.

It is not a weakly prime, because it can be changed into another prime (20933306039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10466653016 + 10466653017.

It is an arithmetic number, because the mean of its divisors is an integer number (10466653017).

Almost surely, 2^20933306033 is an apocalyptic number.

It is an amenable number.

20933306033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20933306033 is an equidigital number, since it uses as much as digits as its factorization.

20933306033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 32.

Adding to 20933306033 its reverse (33060333902), we get a palindrome (53993639935).

The spelling of 20933306033 in words is "twenty billion, nine hundred thirty-three million, three hundred six thousand, thirty-three".