231131330210 has 32 divisors (see below), whose sum is σ = 473590841472. Its totient is φ = 80393505280.

The previous prime is 231131330189. The next prime is 231131330257. The reversal of 231131330210 is 12033131132.

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, 45675599 + ... + 45680658.

It is an arithmetic number, because the mean of its divisors is an integer number (14799713796).

Almost surely, 2^231131330210 is an apocalyptic number.

231131330210 is an abundant number, since it is smaller than the sum of its proper divisors (242459511262).

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

231131330210 is a wasteful number, since it uses less digits than its factorization.

231131330210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91356298.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231131330210 its reverse (12033131132), we get a palindrome (243164461342).

The spelling of 231131330210 in words is "two hundred thirty-one billion, one hundred thirty-one million, three hundred thirty thousand, two hundred ten".