1010000001943 has 2 divisors, whose sum is σ = 1010000001944. Its totient is φ = 1010000001942.

The previous prime is 1010000001893. The next prime is 1010000002013. The reversal of 1010000001943 is 3491000000101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1010000001943 - 2¹⁷ = 1009999870871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010000001943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010000041943) 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, 505000000971 + 505000000972.

It is an arithmetic number, because the mean of its divisors is an integer number (505000000972).

Almost surely, 2^{1010000001943} is an apocalyptic number.

1010000001943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010000001943 is an equidigital number, since it uses as much as digits as its factorization.

1010000001943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 1010000001943 in words is "one trillion, ten billion, one thousand, nine hundred forty-three".