10001001000043 has 2 divisors, whose sum is σ = 10001001000044. Its totient is φ = 10001001000042.

The previous prime is 10001000999953. The next prime is 10001001000073. The reversal of 10001001000043 is 34000010010001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10001001000043 - 2³⁷ = 9863562046571 is a prime.

It is a super-2 number, since 2×10001001000043² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10001000999993 and 10001001000029.

It is not a weakly prime, because it can be changed into another prime (10001001000073) 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, 5000500500021 + 5000500500022.

It is an arithmetic number, because the mean of its divisors is an integer number (5000500500022).

Almost surely, 2^{10001001000043} is an apocalyptic number.

10001001000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001001000043 is an equidigital number, since it uses as much as digits as its factorization.

10001001000043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10001001000043 its reverse (34000010010001), we get a palindrome (44001011010044).

The spelling of 10001001000043 in words is "ten trillion, one billion, one million, forty-three", and thus it is an aban number and an uban number.