203442343044 has 12 divisors (see below), whose sum is σ = 474698800464. Its totient is φ = 67814114344.

The previous prime is 203442343043. The next prime is 203442343057. The reversal of 203442343044 is 440343244302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 203442342996 and 203442343014.

It is not an unprimeable number, because it can be changed into a prime (203442343043) 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, 8476764282 + ... + 8476764305.

It is an arithmetic number, because the mean of its divisors is an integer number (39558233372).

Almost surely, 2^203442343044 is an apocalyptic number.

It is an amenable number.

203442343044 is an abundant number, since it is smaller than the sum of its proper divisors (271256457420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203442343044 is a wasteful number, since it uses less digits than its factorization.

203442343044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16953528594 (or 16953528592 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 33.

Adding to 203442343044 its reverse (440343244302), we get a palindrome (643785587346).

The spelling of 203442343044 in words is "two hundred three billion, four hundred forty-two million, three hundred forty-three thousand, forty-four".