231235122 has 16 divisors (see below), whose sum is σ = 489674592. Its totient is φ = 72544320.

The previous prime is 231235117. The next prime is 231235141. The reversal of 231235122 is 221532132.

231235122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133404 + ... + 1133607.

It is an arithmetic number, because the mean of its divisors is an integer number (30604662).

Almost surely, 2^231235122 is an apocalyptic number.

231235122 is an abundant number, since it is smaller than the sum of its proper divisors (258439470).

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

231235122 is a wasteful number, since it uses less digits than its factorization.

231235122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267033.

The product of its digits is 720, while the sum is 21.

The square root of 231235122 is about 15206.4171322505. The cubic root of 231235122 is about 613.7873493917.

Adding to 231235122 its reverse (221532132), we get a palindrome (452767254).

The spelling of 231235122 in words is "two hundred thirty-one million, two hundred thirty-five thousand, one hundred twenty-two".