20530542240283 has 2 divisors, whose sum is σ = 20530542240284. Its totient is φ = 20530542240282.

The previous prime is 20530542240217. The next prime is 20530542240323. The reversal of 20530542240283 is 38204224503502.

It is an a-pointer prime, because the next prime (20530542240323) can be obtained adding 20530542240283 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20530542240283 - 2⁹ = 20530542239771 is a prime.

It is not a weakly prime, because it can be changed into another prime (20530542240203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10265271120141 + 10265271120142.

It is an arithmetic number, because the mean of its divisors is an integer number (10265271120142).

Almost surely, 2^{20530542240283} is an apocalyptic number.

20530542240283 is a deficient number, since it is larger than the sum of its proper divisors (1).

20530542240283 is an equidigital number, since it uses as much as digits as its factorization.

20530542240283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 20530542240283 its reverse (38204224503502), we get a palindrome (58734766743785).

The spelling of 20530542240283 in words is "twenty trillion, five hundred thirty billion, five hundred forty-two million, two hundred forty thousand, two hundred eighty-three".