312012011030243 has 2 divisors, whose sum is σ = 312012011030244. Its totient is φ = 312012011030242.

The previous prime is 312012011030179. The next prime is 312012011030281. The reversal of 312012011030243 is 342030110210213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312012011030243 - 2⁶ = 312012011030179 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (312012011030143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156006005515121 + 156006005515122.

It is an arithmetic number, because the mean of its divisors is an integer number (156006005515122).

Almost surely, 2^{312012011030243} is an apocalyptic number.

312012011030243 is a deficient number, since it is larger than the sum of its proper divisors (1).

312012011030243 is an equidigital number, since it uses as much as digits as its factorization.

312012011030243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 312012011030243 its reverse (342030110210213), we get a palindrome (654042121240456).

The spelling of 312012011030243 in words is "three hundred twelve trillion, twelve billion, eleven million, thirty thousand, two hundred forty-three".