203113232300 has 144 divisors (see below), whose sum is σ = 504744694272. Its totient is φ = 70223577600.

The previous prime is 203113232297. The next prime is 203113232351. The reversal of 203113232300 is 3232311302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4201064 + ... + 4249136.

It is an arithmetic number, because the mean of its divisors is an integer number (3505171488).

Almost surely, 2^203113232300 is an apocalyptic number.

203113232300 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 203113232300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252372347136).

203113232300 is an abundant number, since it is smaller than the sum of its proper divisors (301631461972).

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

203113232300 is a wasteful number, since it uses less digits than its factorization.

203113232300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48288 (or 48281 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203113232300 its reverse (3232311302), we get a palindrome (206345543602).

The spelling of 203113232300 in words is "two hundred three billion, one hundred thirteen million, two hundred thirty-two thousand, three hundred".