312220133287 has 2 divisors, whose sum is σ = 312220133288. Its totient is φ = 312220133286.

The previous prime is 312220133257. The next prime is 312220133311. The reversal of 312220133287 is 782331022213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312220133287 - 2¹⁵ = 312220100519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312220133227) 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, 156110066643 + 156110066644.

It is an arithmetic number, because the mean of its divisors is an integer number (156110066644).

Almost surely, 2^312220133287 is an apocalyptic number.

312220133287 is a deficient number, since it is larger than the sum of its proper divisors (1).

312220133287 is an equidigital number, since it uses as much as digits as its factorization.

312220133287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 312220133287 in words is "three hundred twelve billion, two hundred twenty million, one hundred thirty-three thousand, two hundred eighty-seven".