203320400244 has 96 divisors (see below), whose sum is σ = 516185725440. Its totient is φ = 61916400000.

The previous prime is 203320400221. The next prime is 203320400279. The reversal of 203320400244 is 442004023302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7732119 + ... + 7758369.

It is an arithmetic number, because the mean of its divisors is an integer number (5376934640).

Almost surely, 2^203320400244 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 203320400244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258092862720).

203320400244 is an abundant number, since it is smaller than the sum of its proper divisors (312865325196).

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

203320400244 is a wasteful number, since it uses less digits than its factorization.

203320400244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26781 (or 26779 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 203320400244 its reverse (442004023302), we get a palindrome (645324423546).

The spelling of 203320400244 in words is "two hundred three billion, three hundred twenty million, four hundred thousand, two hundred forty-four".