20019563141 has 2 divisors, whose sum is σ = 20019563142. Its totient is φ = 20019563140.

The previous prime is 20019563093. The next prime is 20019563177. The reversal of 20019563141 is 14136591002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18797781025 + 1221782116 = 137105^2 + 34954^2 .

It is a cyclic number.

It is not a de Polignac number, because 20019563141 - 2⁶ = 20019563077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20019563098 and 20019563107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20019568141) 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, 10009781570 + 10009781571.

It is an arithmetic number, because the mean of its divisors is an integer number (10009781571).

Almost surely, 2^20019563141 is an apocalyptic number.

It is an amenable number.

20019563141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20019563141 is an equidigital number, since it uses as much as digits as its factorization.

20019563141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 20019563141 in words is "twenty billion, nineteen million, five hundred sixty-three thousand, one hundred forty-one".