20301424081 has 2 divisors, whose sum is σ = 20301424082. Its totient is φ = 20301424080.

The previous prime is 20301424079. The next prime is 20301424127. The reversal of 20301424081 is 18042410302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18873264400 + 1428159681 = 137380^2 + 37791^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301424081 - 2¹ = 20301424079 is a prime.

It is a super-2 number, since 2×20301424081² (a number of 21 digits) contains 22 as substring.

Together with 20301424079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20301424001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150712040 + 10150712041.

It is an arithmetic number, because the mean of its divisors is an integer number (10150712041).

Almost surely, 2^20301424081 is an apocalyptic number.

It is an amenable number.

20301424081 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301424081 is an equidigital number, since it uses as much as digits as its factorization.

20301424081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 20301424081 its reverse (18042410302), we get a palindrome (38343834383).

The spelling of 20301424081 in words is "twenty billion, three hundred one million, four hundred twenty-four thousand, eighty-one".