126012327317 has 2 divisors, whose sum is σ = 126012327318. Its totient is φ = 126012327316.

The previous prime is 126012327299. The next prime is 126012327319. The reversal of 126012327317 is 713723210621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105969129841 + 20043197476 = 325529^2 + 141574^2 .

It is a cyclic number.

It is not a de Polignac number, because 126012327317 - 2³⁶ = 57292850581 is a prime.

Together with 126012327319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126012327319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63006163658 + 63006163659.

It is an arithmetic number, because the mean of its divisors is an integer number (63006163659).

Almost surely, 2^126012327317 is an apocalyptic number.

It is an amenable number.

126012327317 is a deficient number, since it is larger than the sum of its proper divisors (1).

126012327317 is an equidigital number, since it uses as much as digits as its factorization.

126012327317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

Adding to 126012327317 its reverse (713723210621), we get a palindrome (839735537938).

The spelling of 126012327317 in words is "one hundred twenty-six billion, twelve million, three hundred twenty-seven thousand, three hundred seventeen".