21312026301271 has 2 divisors, whose sum is σ = 21312026301272. Its totient is φ = 21312026301270.

The previous prime is 21312026301221. The next prime is 21312026301317. The reversal of 21312026301271 is 17210362021312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21312026301271 - 2²⁹ = 21311489430359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21312026301221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10656013150635 + 10656013150636.

It is an arithmetic number, because the mean of its divisors is an integer number (10656013150636).

Almost surely, 2^{21312026301271} is an apocalyptic number.

21312026301271 is a deficient number, since it is larger than the sum of its proper divisors (1).

21312026301271 is an equidigital number, since it uses as much as digits as its factorization.

21312026301271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

Adding to 21312026301271 its reverse (17210362021312), we get a palindrome (38522388322583).

The spelling of 21312026301271 in words is "twenty-one trillion, three hundred twelve billion, twenty-six million, three hundred one thousand, two hundred seventy-one".