12320120987 has 2 divisors, whose sum is σ = 12320120988. Its totient is φ = 12320120986.

The previous prime is 12320120929. The next prime is 12320120993. The reversal of 12320120987 is 78902102321.

12320120987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12320120987 - 2⁸ = 12320120731 is a prime.

It is a super-2 number, since 2×12320120987² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12320120927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160060493 + 6160060494.

It is an arithmetic number, because the mean of its divisors is an integer number (6160060494).

Almost surely, 2^12320120987 is an apocalyptic number.

12320120987 is a deficient number, since it is larger than the sum of its proper divisors (1).

12320120987 is an equidigital number, since it uses as much as digits as its factorization.

12320120987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 12320120987 in words is "twelve billion, three hundred twenty million, one hundred twenty thousand, nine hundred eighty-seven".