312100300243 has 2 divisors, whose sum is σ = 312100300244. Its totient is φ = 312100300242.

The previous prime is 312100300217. The next prime is 312100300261. The reversal of 312100300243 is 342003001213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312100300243 - 2¹³ = 312100292051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312100300243.

It is not a weakly prime, because it can be changed into another prime (312100300943) 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, 156050150121 + 156050150122.

It is an arithmetic number, because the mean of its divisors is an integer number (156050150122).

Almost surely, 2^312100300243 is an apocalyptic number.

312100300243 is a deficient number, since it is larger than the sum of its proper divisors (1).

312100300243 is an equidigital number, since it uses as much as digits as its factorization.

312100300243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 312100300243 its reverse (342003001213), we get a palindrome (654103301456).

The spelling of 312100300243 in words is "three hundred twelve billion, one hundred million, three hundred thousand, two hundred forty-three".