203200120 has 16 divisors (see below), whose sum is σ = 457200360. Its totient is φ = 81280032.

The previous prime is 203200097. The next prime is 203200139. The reversal of 203200120 is 21002302.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 203200097 and 203200106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2539962 + ... + 2540041.

Almost surely, 2^203200120 is an apocalyptic number.

203200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203200120 is an abundant number, since it is smaller than the sum of its proper divisors (254000240).

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

203200120 is a wasteful number, since it uses less digits than its factorization.

203200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080014 (or 5080010 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 203200120 is about 14254.8279540652. The cubic root of 203200120 is about 587.9061275167.

Adding to 203200120 its reverse (21002302), we get a palindrome (224202422).

The spelling of 203200120 in words is "two hundred three million, two hundred thousand, one hundred twenty".