203444221342 has 16 divisors (see below), whose sum is σ = 311820278832. Its totient is φ = 99515191360.

The previous prime is 203444221297. The next prime is 203444221349. The reversal of 203444221342 is 243122444302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203444221349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2728759 + ... + 2802322.

It is an arithmetic number, because the mean of its divisors is an integer number (19488767427).

Almost surely, 2^203444221342 is an apocalyptic number.

203444221342 is a deficient number, since it is larger than the sum of its proper divisors (108376057490).

203444221342 is a wasteful number, since it uses less digits than its factorization.

203444221342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531483.

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

Adding to 203444221342 its reverse (243122444302), we get a palindrome (446566665644).

The spelling of 203444221342 in words is "two hundred three billion, four hundred forty-four million, two hundred twenty-one thousand, three hundred forty-two".