12040304317 has 2 divisors, whose sum is σ = 12040304318. Its totient is φ = 12040304316.

The previous prime is 12040304291. The next prime is 12040304323. The reversal of 12040304317 is 71340304021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10647969721 + 1392334596 = 103189^2 + 37314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12040304317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12040304291 and 12040304300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12040304357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020152158 + 6020152159.

It is an arithmetic number, because the mean of its divisors is an integer number (6020152159).

Almost surely, 2^12040304317 is an apocalyptic number.

It is an amenable number.

12040304317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12040304317 is an equidigital number, since it uses as much as digits as its factorization.

12040304317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 12040304317 its reverse (71340304021), we get a palindrome (83380608338).

The spelling of 12040304317 in words is "twelve billion, forty million, three hundred four thousand, three hundred seventeen".