42003203243 has 4 divisors (see below), whose sum is σ = 42534889440. Its totient is φ = 41471517048.

The previous prime is 42003203213. The next prime is 42003203261. The reversal of 42003203243 is 34230230024.

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

It is not a de Polignac number, because 42003203243 - 2¹⁴ = 42003186859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42003203213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265842980 + ... + 265843137.

It is an arithmetic number, because the mean of its divisors is an integer number (10633722360).

Almost surely, 2^42003203243 is an apocalyptic number.

42003203243 is a deficient number, since it is larger than the sum of its proper divisors (531686197).

42003203243 is an equidigital number, since it uses as much as digits as its factorization.

42003203243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531686196.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 42003203243 its reverse (34230230024), we get a palindrome (76233433267).

The spelling of 42003203243 in words is "forty-two billion, three million, two hundred three thousand, two hundred forty-three".