20334310387 has 2 divisors, whose sum is σ = 20334310388. Its totient is φ = 20334310386.

The previous prime is 20334310363. The next prime is 20334310459. The reversal of 20334310387 is 78301343302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20334310387 - 2¹⁵ = 20334277619 is a prime.

It is not a weakly prime, because it can be changed into another prime (20334310687) 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, 10167155193 + 10167155194.

It is an arithmetic number, because the mean of its divisors is an integer number (10167155194).

Almost surely, 2^20334310387 is an apocalyptic number.

20334310387 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334310387 is an equidigital number, since it uses as much as digits as its factorization.

20334310387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 34.

Adding to 20334310387 its reverse (78301343302), we get a palindrome (98635653689).

The spelling of 20334310387 in words is "twenty billion, three hundred thirty-four million, three hundred ten thousand, three hundred eighty-seven".