312300032221987 has 2 divisors, whose sum is σ = 312300032221988. Its totient is φ = 312300032221986.

The previous prime is 312300032221973. The next prime is 312300032222077. The reversal of 312300032221987 is 789122230003213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312300032221987 - 2¹⁹ = 312300031697699 is a prime.

It is not a weakly prime, because it can be changed into another prime (312300032221487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156150016110993 + 156150016110994.

It is an arithmetic number, because the mean of its divisors is an integer number (156150016110994).

Almost surely, 2^{312300032221987} is an apocalyptic number.

312300032221987 is a deficient number, since it is larger than the sum of its proper divisors (1).

312300032221987 is an equidigital number, since it uses as much as digits as its factorization.

312300032221987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 312300032221987 in words is "three hundred twelve trillion, three hundred billion, thirty-two million, two hundred twenty-one thousand, nine hundred eighty-seven".