203103421303000 has 128 divisors (see below), whose sum is σ = 486989091388800. Its totient is φ = 79237840128000.

The previous prime is 203103421302967. The next prime is 203103421303001. The reversal of 203103421303000 is 303124301302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203103421303001) 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 31 ways as a sum of consecutive naturals, for example, 147200316 + ... + 148573684.

It is an arithmetic number, because the mean of its divisors is an integer number (3804602276475).

Almost surely, 2^{203103421303000} is an apocalyptic number.

203103421303000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203103421303000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243494545694400).

203103421303000 is an abundant number, since it is smaller than the sum of its proper divisors (283885670085800).

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

203103421303000 is a wasteful number, since it uses less digits than its factorization.

203103421303000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377038 (or 1377024 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 203103421303000 its reverse (303124301302), we get a palindrome (203406545604302).

The spelling of 203103421303000 in words is "two hundred three trillion, one hundred three billion, four hundred twenty-one million, three hundred three thousand".