10271312209 has 2 divisors, whose sum is σ = 10271312210. Its totient is φ = 10271312208.

The previous prime is 10271312203. The next prime is 10271312237. The reversal of 10271312209 is 90221317201.

It is an a-pointer prime, because the next prime (10271312237) can be obtained adding 10271312209 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10154995984 + 116316225 = 100772^2 + 10785^2 .

It is a cyclic number.

It is not a de Polignac number, because 10271312209 - 2⁹ = 10271311697 is a prime.

It is not a weakly prime, because it can be changed into another prime (10271312203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5135656104 + 5135656105.

It is an arithmetic number, because the mean of its divisors is an integer number (5135656105).

Almost surely, 2^10271312209 is an apocalyptic number.

It is an amenable number.

10271312209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10271312209 is an equidigital number, since it uses as much as digits as its factorization.

10271312209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 10271312209 in words is "ten billion, two hundred seventy-one million, three hundred twelve thousand, two hundred nine".