12180359497 has 2 divisors, whose sum is σ = 12180359498. Its totient is φ = 12180359496.

The previous prime is 12180359491. The next prime is 12180359531. The reversal of 12180359497 is 79495308121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8675245881 + 3505113616 = 93141^2 + 59204^2 .

It is an emirp because it is prime and its reverse (79495308121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12180359497 - 2⁷ = 12180359369 is a prime.

It is a super-2 number, since 2×12180359497² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12180359497.

It is not a weakly prime, because it can be changed into another prime (12180359491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6090179748 + 6090179749.

It is an arithmetic number, because the mean of its divisors is an integer number (6090179749).

Almost surely, 2^12180359497 is an apocalyptic number.

It is an amenable number.

12180359497 is a deficient number, since it is larger than the sum of its proper divisors (1).

12180359497 is an equidigital number, since it uses as much as digits as its factorization.

12180359497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 12180359497 in words is "twelve billion, one hundred eighty million, three hundred fifty-nine thousand, four hundred ninety-seven".