4002004000243 has 4 divisors (see below), whose sum is σ = 4015039844200. Its totient is φ = 3988968156288.

The previous prime is 4002004000219. The next prime is 4002004000259. The reversal of 4002004000243 is 3420004002004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4002004000243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4002004000243.

It is not an unprimeable number, because it can be changed into a prime (4002004000273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6517921518 + ... + 6517922131.

It is an arithmetic number, because the mean of its divisors is an integer number (1003759961050).

Almost surely, 2^{4002004000243} is an apocalyptic number.

4002004000243 is a deficient number, since it is larger than the sum of its proper divisors (13035843957).

4002004000243 is a wasteful number, since it uses less digits than its factorization.

4002004000243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13035843956.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 4002004000243 its reverse (3420004002004), we get a palindrome (7422008002247).

The spelling of 4002004000243 in words is "four trillion, two billion, four million, two hundred forty-three", and thus it is an aban number.