1004243042443 has 6 divisors (see below), whose sum is σ = 1037682978252. Its totient is φ = 971848104660.

The previous prime is 1004243042423. The next prime is 1004243042483. The reversal of 1004243042443 is 3442403424001.

It is not a de Polignac number, because 1004243042443 - 2¹³ = 1004243034251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004243042423) 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, 522498021 + ... + 522499942.

It is an arithmetic number, because the mean of its divisors is an integer number (172947163042).

Almost surely, 2^{1004243042443} is an apocalyptic number.

1004243042443 is a deficient number, since it is larger than the sum of its proper divisors (33439935809).

1004243042443 is an equidigital number, since it uses as much as digits as its factorization.

1004243042443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044998025 (or 1044997994 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 1004243042443 its reverse (3442403424001), we get a palindrome (4446646466444).

The spelling of 1004243042443 in words is "one trillion, four billion, two hundred forty-three million, forty-two thousand, four hundred forty-three".