20012310533 has 2 divisors, whose sum is σ = 20012310534. Its totient is φ = 20012310532.

The previous prime is 20012310503. The next prime is 20012310581. The reversal of 20012310533 is 33501321002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19566973924 + 445336609 = 139882^2 + 21103^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012310533 - 2⁸ = 20012310277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012310503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006155266 + 10006155267.

It is an arithmetic number, because the mean of its divisors is an integer number (10006155267).

Almost surely, 2^20012310533 is an apocalyptic number.

It is an amenable number.

20012310533 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012310533 is an equidigital number, since it uses as much as digits as its factorization.

20012310533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 20012310533 its reverse (33501321002), we get a palindrome (53513631535).

The spelling of 20012310533 in words is "twenty billion, twelve million, three hundred ten thousand, five hundred thirty-three".