203135130 has 48 divisors (see below), whose sum is σ = 576167904. Its totient is φ = 49244640.

The previous prime is 203135123. The next prime is 203135131. The reversal of 203135130 is 31531302.

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

It is not an unprimeable number, because it can be changed into a prime (203135131) by changing a digit.

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, 101604 + ... + 103583.

It is an arithmetic number, because the mean of its divisors is an integer number (12003498).

Almost surely, 2^203135130 is an apocalyptic number.

203135130 is an abundant number, since it is smaller than the sum of its proper divisors (373032774).

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

203135130 is a wasteful number, since it uses less digits than its factorization.

203135130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205211 (or 205208 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 203135130 is about 14252.5481932179. The cubic root of 203135130 is about 587.8434436735.

Adding to 203135130 its reverse (31531302), we get a palindrome (234666432).

The spelling of 203135130 in words is "two hundred three million, one hundred thirty-five thousand, one hundred thirty".