20334001187 has 2 divisors, whose sum is σ = 20334001188. Its totient is φ = 20334001186.

The previous prime is 20334001183. The next prime is 20334001201. The reversal of 20334001187 is 78110043302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20334001187 - 2² = 20334001183 is a prime.

It is not a weakly prime, because it can be changed into another prime (20334001183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167000593 + 10167000594.

It is an arithmetic number, because the mean of its divisors is an integer number (10167000594).

Almost surely, 2^20334001187 is an apocalyptic number.

20334001187 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334001187 is an equidigital number, since it uses as much as digits as its factorization.

20334001187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 20334001187 its reverse (78110043302), we get a palindrome (98444044489).

The spelling of 20334001187 in words is "twenty billion, three hundred thirty-four million, one thousand, one hundred eighty-seven".