1012001002043 has 2 divisors, whose sum is σ = 1012001002044. Its totient is φ = 1012001002042.

The previous prime is 1012001002007. The next prime is 1012001002069. The reversal of 1012001002043 is 3402001002101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1012001002043 - 2³⁸ = 737123095099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012001002543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506000501021 + 506000501022.

It is an arithmetic number, because the mean of its divisors is an integer number (506000501022).

Almost surely, 2^{1012001002043} is an apocalyptic number.

1012001002043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012001002043 is an equidigital number, since it uses as much as digits as its factorization.

1012001002043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1012001002043 its reverse (3402001002101), we get a palindrome (4414002004144).

The spelling of 1012001002043 in words is "one trillion, twelve billion, one million, two thousand, forty-three".