312302209987 has 2 divisors, whose sum is σ = 312302209988. Its totient is φ = 312302209986.

The previous prime is 312302209981. The next prime is 312302210041. The reversal of 312302209987 is 789902203213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312302209987 is a prime.

It is not a weakly prime, because it can be changed into another prime (312302209981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156151104993 + 156151104994.

It is an arithmetic number, because the mean of its divisors is an integer number (156151104994).

Almost surely, 2^312302209987 is an apocalyptic number.

312302209987 is a deficient number, since it is larger than the sum of its proper divisors (1).

312302209987 is an equidigital number, since it uses as much as digits as its factorization.

312302209987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 312302209987 in words is "three hundred twelve billion, three hundred two million, two hundred nine thousand, nine hundred eighty-seven".