20323203440333 has 2 divisors, whose sum is σ = 20323203440334. Its totient is φ = 20323203440332.

The previous prime is 20323203440311. The next prime is 20323203440341. The reversal of 20323203440333 is 33304430232302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15186897379369 + 5136306060964 = 3897037^2 + 2266342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323203440333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20323203440333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20323203440363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161601720166 + 10161601720167.

It is an arithmetic number, because the mean of its divisors is an integer number (10161601720167).

Almost surely, 2^{20323203440333} is an apocalyptic number.

It is an amenable number.

20323203440333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323203440333 is an equidigital number, since it uses as much as digits as its factorization.

20323203440333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 32.

Adding to 20323203440333 its reverse (33304430232302), we get a palindrome (53627633672635).

The spelling of 20323203440333 in words is "twenty trillion, three hundred twenty-three billion, two hundred three million, four hundred forty thousand, three hundred thirty-three".