203204225324144 has 80 divisors (see below), whose sum is σ = 437627982561120. Its totient is φ = 90617763425280.

The previous prime is 203204225324119. The next prime is 203204225324203. The reversal of 203204225324144 is 441423522402302.

It is a junction number, because it is equal to n+sod(n) for n = 203204225324098 and 203204225324107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169442594 + ... + 170637630.

It is an arithmetic number, because the mean of its divisors is an integer number (5470349782014).

Almost surely, 2^{203204225324144} 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 203204225324144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218813991280560).

203204225324144 is an abundant number, since it is smaller than the sum of its proper divisors (234423757236976).

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

203204225324144 is a wasteful number, since it uses less digits than its factorization.

203204225324144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213338 (or 1213332 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 203204225324144 its reverse (441423522402302), we get a palindrome (644627747726446).

The spelling of 203204225324144 in words is "two hundred three trillion, two hundred four billion, two hundred twenty-five million, three hundred twenty-four thousand, one hundred forty-four".