1001043142343 has 2 divisors, whose sum is σ = 1001043142344. Its totient is φ = 1001043142342.

The previous prime is 1001043142289. The next prime is 1001043142399. The reversal of 1001043142343 is 3432413401001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001043142343 - 2³⁰ = 999969400519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001043172343) 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, 500521571171 + 500521571172.

It is an arithmetic number, because the mean of its divisors is an integer number (500521571172).

Almost surely, 2^{1001043142343} is an apocalyptic number.

1001043142343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001043142343 is an equidigital number, since it uses as much as digits as its factorization.

1001043142343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1001043142343 its reverse (3432413401001), we get a palindrome (4433456543344).

The spelling of 1001043142343 in words is "one trillion, one billion, forty-three million, one hundred forty-two thousand, three hundred forty-three".