12347108981497 has 2 divisors, whose sum is σ = 12347108981498. Its totient is φ = 12347108981496.

The previous prime is 12347108981479. The next prime is 12347108981573. The reversal of 12347108981497 is 79418980174321.

Together with previous prime (12347108981479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7624727986681 + 4722380994816 = 2761291^2 + 2173104^2 .

It is a cyclic number.

It is not a de Polignac number, because 12347108981497 - 2¹⁹ = 12347108457209 is a prime.

It is a super-2 number, since 2×12347108981497² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12347108981437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6173554490748 + 6173554490749.

It is an arithmetic number, because the mean of its divisors is an integer number (6173554490749).

Almost surely, 2^{12347108981497} is an apocalyptic number.

It is an amenable number.

12347108981497 is a deficient number, since it is larger than the sum of its proper divisors (1).

12347108981497 is an equidigital number, since it uses as much as digits as its factorization.

12347108981497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 12347108981497 in words is "twelve trillion, three hundred forty-seven billion, one hundred eight million, nine hundred eighty-one thousand, four hundred ninety-seven".