12108353156687 has 2 divisors, whose sum is σ = 12108353156688. Its totient is φ = 12108353156686.

The previous prime is 12108353156657. The next prime is 12108353156699. The reversal of 12108353156687 is 78665135380121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12108353156687 - 2¹⁸ = 12108352894543 is a prime.

It is a super-2 number, since 2×12108353156687² (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 (12108353156657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6054176578343 + 6054176578344.

It is an arithmetic number, because the mean of its divisors is an integer number (6054176578344).

Almost surely, 2^{12108353156687} is an apocalyptic number.

12108353156687 is a deficient number, since it is larger than the sum of its proper divisors (1).

12108353156687 is an equidigital number, since it uses as much as digits as its factorization.

12108353156687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 12108353156687 in words is "twelve trillion, one hundred eight billion, three hundred fifty-three million, one hundred fifty-six thousand, six hundred eighty-seven".