12036871361 has 2 divisors, whose sum is σ = 12036871362. Its totient is φ = 12036871360.

The previous prime is 12036871349. The next prime is 12036871367. The reversal of 12036871361 is 16317863021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10290885136 + 1745986225 = 101444^2 + 41785^2 .

It is an emirp because it is prime and its reverse (16317863021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12036871361 - 2¹⁸ = 12036609217 is a prime.

It is a super-2 number, since 2×12036871361² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12036871367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6018435680 + 6018435681.

It is an arithmetic number, because the mean of its divisors is an integer number (6018435681).

Almost surely, 2^12036871361 is an apocalyptic number.

It is an amenable number.

12036871361 is a deficient number, since it is larger than the sum of its proper divisors (1).

12036871361 is an equidigital number, since it uses as much as digits as its factorization.

12036871361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 12036871361 in words is "twelve billion, thirty-six million, eight hundred seventy-one thousand, three hundred sixty-one".