203120200 has 24 divisors (see below), whose sum is σ = 472254930. Its totient is φ = 81248000.

The previous prime is 203120189. The next prime is 203120257. The reversal of 203120200 is 2021302.

It can be written as a sum of positive squares in 3 ways, for example, as 152226244 + 50893956 = 12338^2 + 7134^2 .

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

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 5 ways as a sum of consecutive naturals, for example, 507601 + ... + 508000.

Almost surely, 2^203120200 is an apocalyptic number.

203120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203120200 is an abundant number, since it is smaller than the sum of its proper divisors (269134730).

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

203120200 is a wasteful number, since it uses less digits than its factorization.

203120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015617 (or 1015608 counting only the distinct ones).

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

The square root of 203120200 is about 14252.0244176047. The cubic root of 203120200 is about 587.8290415731.

Adding to 203120200 its reverse (2021302), we get a palindrome (205141502).

The spelling of 203120200 in words is "two hundred three million, one hundred twenty thousand, two hundred".