203244242243 has 4 divisors (see below), whose sum is σ = 232279134000. Its totient is φ = 174209350488.

The previous prime is 203244242207. The next prime is 203244242287. The reversal of 203244242243 is 342242442302.

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

It is a cyclic number.

It is not a de Polignac number, because 203244242243 - 2¹² = 203244238147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203244242143) 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, 14517445868 + ... + 14517445881.

It is an arithmetic number, because the mean of its divisors is an integer number (58069783500).

Almost surely, 2^203244242243 is an apocalyptic number.

203244242243 is a deficient number, since it is larger than the sum of its proper divisors (29034891757).

203244242243 is an equidigital number, since it uses as much as digits as its factorization.

203244242243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29034891756.

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 203244242243 its reverse (342242442302), we get a palindrome (545486684545).

The spelling of 203244242243 in words is "two hundred three billion, two hundred forty-four million, two hundred forty-two thousand, two hundred forty-three".