312285018887 has 2 divisors, whose sum is σ = 312285018888. Its totient is φ = 312285018886.

The previous prime is 312285018863. The next prime is 312285018889. The reversal of 312285018887 is 788810582213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312285018887 - 2¹² = 312285014791 is a prime.

Together with 312285018889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312285018889) 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, 156142509443 + 156142509444.

It is an arithmetic number, because the mean of its divisors is an integer number (156142509444).

Almost surely, 2^312285018887 is an apocalyptic number.

312285018887 is a deficient number, since it is larger than the sum of its proper divisors (1).

312285018887 is an equidigital number, since it uses as much as digits as its factorization.

312285018887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1720320, while the sum is 53.

The spelling of 312285018887 in words is "three hundred twelve billion, two hundred eighty-five million, eighteen thousand, eight hundred eighty-seven".