1005131066443 has 6 divisors (see below), whose sum is σ = 1169234097756. Its totient is φ = 861540914052.

The previous prime is 1005131066417. The next prime is 1005131066497. The reversal of 1005131066443 is 3446601315001.

It is not a de Polignac number, because 1005131066443 - 2⁵ = 1005131066411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1005131066399 and 1005131066408.

It is not an unprimeable number, because it can be changed into a prime (1005131066743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10256439405 + ... + 10256439502.

It is an arithmetic number, because the mean of its divisors is an integer number (194872349626).

Almost surely, 2^{1005131066443} is an apocalyptic number.

1005131066443 is a deficient number, since it is larger than the sum of its proper divisors (164103031313).

1005131066443 is an equidigital number, since it uses as much as digits as its factorization.

1005131066443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20512878921 (or 20512878914 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 1005131066443 in words is "one trillion, five billion, one hundred thirty-one million, sixty-six thousand, four hundred forty-three".