20324141563181 has 2 divisors, whose sum is σ = 20324141563182. Its totient is φ = 20324141563180.

The previous prime is 20324141563139. The next prime is 20324141563183. The reversal of 20324141563181 is 18136514142302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19899896464900 + 424245098281 = 4460930^2 + 651341^2 .

It is a cyclic number.

It is not a de Polignac number, because 20324141563181 - 2²² = 20324137368877 is a prime.

It is a super-2 number, since 2×20324141563181² (a number of 27 digits) contains 22 as substring.

Together with 20324141563183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20324141563183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162070781590 + 10162070781591.

It is an arithmetic number, because the mean of its divisors is an integer number (10162070781591).

Almost surely, 2^{20324141563181} is an apocalyptic number.

It is an amenable number.

20324141563181 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324141563181 is an equidigital number, since it uses as much as digits as its factorization.

20324141563181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 20324141563181 in words is "twenty trillion, three hundred twenty-four billion, one hundred forty-one million, five hundred sixty-three thousand, one hundred eighty-one".