203423441144 has 96 divisors (see below), whose sum is σ = 479471916000. Its totient is φ = 79200633600.

The previous prime is 203423441129. The next prime is 203423441147. The reversal of 203423441144 is 441144324302.

It is a super-4 number, since 4×203423441144⁴ (a number of 46 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 203423441144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203423441147) 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 23 ways as a sum of consecutive naturals, for example, 10486334 + ... + 10505714.

It is an arithmetic number, because the mean of its divisors is an integer number (4994499125).

Almost surely, 2^203423441144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203423441144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239735958000).

203423441144 is an abundant number, since it is smaller than the sum of its proper divisors (276048474856).

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

203423441144 is a wasteful number, since it uses less digits than its factorization.

203423441144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20965 (or 20950 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 203423441144 its reverse (441144324302), we get a palindrome (644567765446).

The spelling of 203423441144 in words is "two hundred three billion, four hundred twenty-three million, four hundred forty-one thousand, one hundred forty-four".