20334304481 has 2 divisors, whose sum is σ = 20334304482. Its totient is φ = 20334304480.

The previous prime is 20334304429. The next prime is 20334304483. The reversal of 20334304481 is 18440343302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19982366881 + 351937600 = 141359^2 + 18760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20334304481 is a prime.

It is a super-3 number, since 3×20334304481³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 20334304483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20334304483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167152240 + 10167152241.

It is an arithmetic number, because the mean of its divisors is an integer number (10167152241).

Almost surely, 2^20334304481 is an apocalyptic number.

It is an amenable number.

20334304481 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334304481 is an equidigital number, since it uses as much as digits as its factorization.

20334304481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 20334304481 its reverse (18440343302), we get a palindrome (38774647783).

The spelling of 20334304481 in words is "twenty billion, three hundred thirty-four million, three hundred four thousand, four hundred eighty-one".