12294178721317 has 2 divisors, whose sum is σ = 12294178721318. Its totient is φ = 12294178721316.

The previous prime is 12294178721267. The next prime is 12294178721369. The reversal of 12294178721317 is 71312787149221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12278920048641 + 15258672676 = 3504129^2 + 123526^2 .

It is a cyclic number.

It is not a de Polignac number, because 12294178721317 - 2³⁵ = 12259818982949 is a prime.

It is a super-2 number, since 2×12294178721317² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12294178721717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6147089360658 + 6147089360659.

It is an arithmetic number, because the mean of its divisors is an integer number (6147089360659).

Almost surely, 2^{12294178721317} is an apocalyptic number.

It is an amenable number.

12294178721317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12294178721317 is an equidigital number, since it uses as much as digits as its factorization.

12294178721317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2370816, while the sum is 55.

The spelling of 12294178721317 in words is "twelve trillion, two hundred ninety-four billion, one hundred seventy-eight million, seven hundred twenty-one thousand, three hundred seventeen".