203081130 has 48 divisors (see below), whose sum is σ = 603442944. Its totient is φ = 46418400.

The previous prime is 203081129. The next prime is 203081161. The reversal of 203081130 is 31180302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 160546 + ... + 161805.

It is an arithmetic number, because the mean of its divisors is an integer number (12571728).

Almost surely, 2^203081130 is an apocalyptic number.

203081130 is an abundant number, since it is smaller than the sum of its proper divisors (400361814).

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

203081130 is a wasteful number, since it uses less digits than its factorization.

203081130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322371 (or 322368 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 203081130 is about 14250.6536692181. The cubic root of 203081130 is about 587.7913496821.

The spelling of 203081130 in words is "two hundred three million, eighty-one thousand, one hundred thirty".