203030055320 has 32 divisors (see below), whose sum is σ = 460104094800. Its totient is φ = 80627760768.

The previous prime is 203030055287. The next prime is 203030055323. The reversal of 203030055320 is 23550030302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203030055323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18252539 + ... + 18263658.

Almost surely, 2^203030055320 is an apocalyptic number.

203030055320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203030055320 is an abundant number, since it is smaller than the sum of its proper divisors (257074039480).

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

203030055320 is a wasteful number, since it uses less digits than its factorization.

203030055320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36516347 (or 36516343 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 23.

Adding to 203030055320 its reverse (23550030302), we get a palindrome (226580085622).

The spelling of 203030055320 in words is "two hundred three billion, thirty million, fifty-five thousand, three hundred twenty".