1943112203843 has 2 divisors, whose sum is σ = 1943112203844. Its totient is φ = 1943112203842.

The previous prime is 1943112203827. The next prime is 1943112203863. The reversal of 1943112203843 is 3483022113491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1943112203843 - 2⁴ = 1943112203827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1943112203843.

It is not a weakly prime, because it can be changed into another prime (1943112203863) 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, 971556101921 + 971556101922.

It is an arithmetic number, because the mean of its divisors is an integer number (971556101922).

Almost surely, 2^{1943112203843} is an apocalyptic number.

1943112203843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1943112203843 is an equidigital number, since it uses as much as digits as its factorization.

1943112203843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 1943112203843 in words is "one trillion, nine hundred forty-three billion, one hundred twelve million, two hundred three thousand, eight hundred forty-three".