4000352305243 has 4 divisors (see below), whose sum is σ = 4571831206000. Its totient is φ = 3428873404488.

The previous prime is 4000352305241. The next prime is 4000352305283. The reversal of 4000352305243 is 3425032530004.

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

It is not a de Polignac number, because 4000352305243 - 2¹ = 4000352305241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4000352305241) 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 in 3 ways as a sum of consecutive naturals, for example, 285739450368 + ... + 285739450381.

It is an arithmetic number, because the mean of its divisors is an integer number (1142957801500).

Almost surely, 2^{4000352305243} is an apocalyptic number.

4000352305243 is a deficient number, since it is larger than the sum of its proper divisors (571478900757).

4000352305243 is an equidigital number, since it uses as much as digits as its factorization.

4000352305243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571478900756.

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 4000352305243 its reverse (3425032530004), we get a palindrome (7425384835247).

The spelling of 4000352305243 in words is "four trillion, three hundred fifty-two million, three hundred five thousand, two hundred forty-three".