20200211947 has 2 divisors, whose sum is σ = 20200211948. Its totient is φ = 20200211946.

The previous prime is 20200211929. The next prime is 20200212127. The reversal of 20200211947 is 74911200202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20200211947 - 2¹¹ = 20200209899 is a prime.

It is not a weakly prime, because it can be changed into another prime (20200211047) 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, 10100105973 + 10100105974.

It is an arithmetic number, because the mean of its divisors is an integer number (10100105974).

Almost surely, 2^20200211947 is an apocalyptic number.

20200211947 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200211947 is an equidigital number, since it uses as much as digits as its factorization.

20200211947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 20200211947 in words is "twenty billion, two hundred million, two hundred eleven thousand, nine hundred forty-seven".