231203130 has 32 divisors (see below), whose sum is σ = 579014784. Its totient is φ = 58973376.

The previous prime is 231203129. The next prime is 231203143. The reversal of 231203130 is 31302132.

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, 166849 + ... + 168228.

It is an arithmetic number, because the mean of its divisors is an integer number (18094212).

Almost surely, 2^231203130 is an apocalyptic number.

231203130 is an abundant number, since it is smaller than the sum of its proper divisors (347811654).

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

231203130 is a wasteful number, since it uses less digits than its factorization.

231203130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335110.

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

The square root of 231203130 is about 15205.3651715439. The cubic root of 231203130 is about 613.7590417103.

Adding to 231203130 its reverse (31302132), we get a palindrome (262505262).

The spelling of 231203130 in words is "two hundred thirty-one million, two hundred three thousand, one hundred thirty".