231132332011 has 4 divisors (see below), whose sum is σ = 264151236592. Its totient is φ = 198113427432.

The previous prime is 231132332009. The next prime is 231132332051. The reversal of 231132332011 is 110233231132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231132332011 - 2¹ = 231132332009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231132332051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16509452280 + ... + 16509452293.

It is an arithmetic number, because the mean of its divisors is an integer number (66037809148).

Almost surely, 2^231132332011 is an apocalyptic number.

231132332011 is a deficient number, since it is larger than the sum of its proper divisors (33018904581).

231132332011 is an equidigital number, since it uses as much as digits as its factorization.

231132332011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33018904580.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231132332011 its reverse (110233231132), we get a palindrome (341365563143).

The spelling of 231132332011 in words is "two hundred thirty-one billion, one hundred thirty-two million, three hundred thirty-two thousand, eleven".