20334312247 has 2 divisors, whose sum is σ = 20334312248. Its totient is φ = 20334312246.

The previous prime is 20334312197. The next prime is 20334312277. The reversal of 20334312247 is 74221343302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20334312247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20334312277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167156123 + 10167156124.

It is an arithmetic number, because the mean of its divisors is an integer number (10167156124).

Almost surely, 2^20334312247 is an apocalyptic number.

20334312247 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334312247 is an equidigital number, since it uses as much as digits as its factorization.

20334312247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 31.

Adding to 20334312247 its reverse (74221343302), we get a palindrome (94555655549).

The spelling of 20334312247 in words is "twenty billion, three hundred thirty-four million, three hundred twelve thousand, two hundred forty-seven".