20102012011271 has 2 divisors, whose sum is σ = 20102012011272. Its totient is φ = 20102012011270.

The previous prime is 20102012011201. The next prime is 20102012011309. The reversal of 20102012011271 is 17211021020102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102012011271 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102012011201) 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, 10051006005635 + 10051006005636.

It is an arithmetic number, because the mean of its divisors is an integer number (10051006005636).

Almost surely, 2^{20102012011271} is an apocalyptic number.

20102012011271 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102012011271 is an equidigital number, since it uses as much as digits as its factorization.

20102012011271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 20102012011271 its reverse (17211021020102), we get a palindrome (37313033031373).

The spelling of 20102012011271 in words is "twenty trillion, one hundred two billion, twelve million, eleven thousand, two hundred seventy-one".