233131230111 has 16 divisors (see below), whose sum is σ = 335547695840. Its totient is φ = 143124589440.

The previous prime is 233131230089. The next prime is 233131230127. The reversal of 233131230111 is 111032131332.

It is a happy number.

It is not a de Polignac number, because 233131230111 - 2¹¹ = 233131228063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233131230161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7083016 + ... + 7115853.

It is an arithmetic number, because the mean of its divisors is an integer number (20971730990).

Almost surely, 2^233131230111 is an apocalyptic number.

233131230111 is a deficient number, since it is larger than the sum of its proper divisors (102416465729).

233131230111 is a wasteful number, since it uses less digits than its factorization.

233131230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14199306.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 233131230111 its reverse (111032131332), we get a palindrome (344163361443).

The spelling of 233131230111 in words is "two hundred thirty-three billion, one hundred thirty-one million, two hundred thirty thousand, one hundred eleven".