1312100122243 has 2 divisors, whose sum is σ = 1312100122244. Its totient is φ = 1312100122242.

The previous prime is 1312100122237. The next prime is 1312100122339. The reversal of 1312100122243 is 3422210012131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312100122243 - 2³⁷ = 1174661168771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312100122213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656050061121 + 656050061122.

It is an arithmetic number, because the mean of its divisors is an integer number (656050061122).

Almost surely, 2^{1312100122243} is an apocalyptic number.

1312100122243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312100122243 is an equidigital number, since it uses as much as digits as its factorization.

1312100122243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1312100122243 its reverse (3422210012131), we get a palindrome (4734310134374).

The spelling of 1312100122243 in words is "one trillion, three hundred twelve billion, one hundred million, one hundred twenty-two thousand, two hundred forty-three".