12010561271 has 2 divisors, whose sum is σ = 12010561272. Its totient is φ = 12010561270.

The previous prime is 12010561223. The next prime is 12010561351. The reversal of 12010561271 is 17216501021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12010561271 - 2¹⁸ = 12010299127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12010561271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12010569271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005280635 + 6005280636.

It is an arithmetic number, because the mean of its divisors is an integer number (6005280636).

Almost surely, 2^12010561271 is an apocalyptic number.

12010561271 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010561271 is an equidigital number, since it uses as much as digits as its factorization.

12010561271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 26.

The spelling of 12010561271 in words is "twelve billion, ten million, five hundred sixty-one thousand, two hundred seventy-one".