211020000071 has 2 divisors, whose sum is σ = 211020000072. Its totient is φ = 211020000070.

The previous prime is 211019999969. The next prime is 211020000131. The reversal of 211020000071 is 170000020112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211020000071 - 2¹⁸ = 211019737927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211020003071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510000035 + 105510000036.

It is an arithmetic number, because the mean of its divisors is an integer number (105510000036).

Almost surely, 2^211020000071 is an apocalyptic number.

211020000071 is a deficient number, since it is larger than the sum of its proper divisors (1).

211020000071 is an equidigital number, since it uses as much as digits as its factorization.

211020000071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 14.

Adding to 211020000071 its reverse (170000020112), we get a palindrome (381020020183).

The spelling of 211020000071 in words is "two hundred eleven billion, twenty million, seventy-one", and thus it is an aban number.