203231130 has 32 divisors (see below), whose sum is σ = 504576000. Its totient is φ = 52325952.

The previous prime is 203231117. The next prime is 203231153. The reversal of 203231130 is 31132302.

203231130 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115930 + ... + 117669.

It is an arithmetic number, because the mean of its divisors is an integer number (15768000).

Almost surely, 2^203231130 is an apocalyptic number.

203231130 is an abundant number, since it is smaller than the sum of its proper divisors (301344870).

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

203231130 is a wasteful number, since it uses less digits than its factorization.

203231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233638.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 203231130 is about 14255.9156142284. The cubic root of 203231130 is about 587.9360324231.

Adding to 203231130 its reverse (31132302), we get a palindrome (234363432).

The spelling of 203231130 in words is "two hundred three million, two hundred thirty-one thousand, one hundred thirty".