20001323333 has 2 divisors, whose sum is σ = 20001323334. Its totient is φ = 20001323332.

The previous prime is 20001323263. The next prime is 20001323341. The reversal of 20001323333 is 33332310002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15940830049 + 4060493284 = 126257^2 + 63722^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001323333 - 2²⁰ = 20000274757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001323233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000661666 + 10000661667.

It is an arithmetic number, because the mean of its divisors is an integer number (10000661667).

Almost surely, 2^20001323333 is an apocalyptic number.

It is an amenable number.

20001323333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001323333 is an equidigital number, since it uses as much as digits as its factorization.

20001323333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20001323333 its reverse (33332310002), we get a palindrome (53333633335).

The spelling of 20001323333 in words is "twenty billion, one million, three hundred twenty-three thousand, three hundred thirty-three".