20321030030051 has 2 divisors, whose sum is σ = 20321030030052. Its totient is φ = 20321030030050.

The previous prime is 20321030029991. The next prime is 20321030030113. The reversal of 20321030030051 is 15003003012302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20321030030051 - 2³⁰ = 20319956288227 is a prime.

It is a super-2 number, since 2×20321030030051² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20321030530051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160515015025 + 10160515015026.

It is an arithmetic number, because the mean of its divisors is an integer number (10160515015026).

Almost surely, 2^{20321030030051} is an apocalyptic number.

20321030030051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321030030051 is an equidigital number, since it uses as much as digits as its factorization.

20321030030051 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 20321030030051 its reverse (15003003012302), we get a palindrome (35324033042353).

The spelling of 20321030030051 in words is "twenty trillion, three hundred twenty-one billion, thirty million, thirty thousand, fifty-one".