20300009987 has 2 divisors, whose sum is σ = 20300009988. Its totient is φ = 20300009986.

The previous prime is 20300009969. The next prime is 20300010037. The reversal of 20300009987 is 78990000302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20300009987 - 2¹⁴ = 20299993603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20300009987.

It is not a weakly prime, because it can be changed into another prime (20300009957) 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, 10150004993 + 10150004994.

It is an arithmetic number, because the mean of its divisors is an integer number (10150004994).

Almost surely, 2^20300009987 is an apocalyptic number.

20300009987 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300009987 is an equidigital number, since it uses as much as digits as its factorization.

20300009987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 20300009987 in words is "twenty billion, three hundred million, nine thousand, nine hundred eighty-seven".