20340041347 has 2 divisors, whose sum is σ = 20340041348. Its totient is φ = 20340041346.

The previous prime is 20340041341. The next prime is 20340041363. The reversal of 20340041347 is 74314004302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20340041347 is a prime.

It is not a weakly prime, because it can be changed into another prime (20340041341) 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, 10170020673 + 10170020674.

It is an arithmetic number, because the mean of its divisors is an integer number (10170020674).

Almost surely, 2^20340041347 is an apocalyptic number.

20340041347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20340041347 is an equidigital number, since it uses as much as digits as its factorization.

20340041347 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 20340041347 its reverse (74314004302), we get a palindrome (94654045649).

The spelling of 20340041347 in words is "twenty billion, three hundred forty million, forty-one thousand, three hundred forty-seven".