203261320 has 32 divisors (see below), whose sum is σ = 457787520. Its totient is φ = 81224640.

The previous prime is 203261293. The next prime is 203261321. The reversal of 203261320 is 23162302.

It is not an unprimeable number, because it can be changed into a prime (203261321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55135 + ... + 58705.

It is an arithmetic number, because the mean of its divisors is an integer number (14305860).

Almost surely, 2^203261320 is an apocalyptic number.

203261320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203261320 is an abundant number, since it is smaller than the sum of its proper divisors (254526200).

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

203261320 is a wasteful number, since it uses less digits than its factorization.

203261320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005 (or 5001 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 203261320 is about 14256.9744335886. The cubic root of 203261320 is about 587.9651436292.

The spelling of 203261320 in words is "two hundred three million, two hundred sixty-one thousand, three hundred twenty".