20530452321019 has 2 divisors, whose sum is σ = 20530452321020. Its totient is φ = 20530452321018.

The previous prime is 20530452321013. The next prime is 20530452321053. The reversal of 20530452321019 is 91012325403502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20530452321019 - 2¹⁵ = 20530452288251 is a prime.

It is a super-2 number, since 2×20530452321019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20530452321013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10265226160509 + 10265226160510.

It is an arithmetic number, because the mean of its divisors is an integer number (10265226160510).

Almost surely, 2^{20530452321019} is an apocalyptic number.

20530452321019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20530452321019 is an equidigital number, since it uses as much as digits as its factorization.

20530452321019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 20530452321019 in words is "twenty trillion, five hundred thirty billion, four hundred fifty-two million, three hundred twenty-one thousand, nineteen".