20341320427 has 2 divisors, whose sum is σ = 20341320428. Its totient is φ = 20341320426.

The previous prime is 20341320343. The next prime is 20341320431. The reversal of 20341320427 is 72402314302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20341320427 - 2³¹ = 18193836779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20341320395 and 20341320404.

It is not a weakly prime, because it can be changed into another prime (20341320227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10170660213 + 10170660214.

It is an arithmetic number, because the mean of its divisors is an integer number (10170660214).

Almost surely, 2^20341320427 is an apocalyptic number.

20341320427 is a deficient number, since it is larger than the sum of its proper divisors (1).

20341320427 is an equidigital number, since it uses as much as digits as its factorization.

20341320427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

Adding to 20341320427 its reverse (72402314302), we get a palindrome (92743634729).

The spelling of 20341320427 in words is "twenty billion, three hundred forty-one million, three hundred twenty thousand, four hundred twenty-seven".