231040011 has 8 divisors (see below), whose sum is σ = 309038800. Its totient is φ = 153533952.

The previous prime is 231040009. The next prime is 231040027. The reversal of 231040011 is 110040132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231040011 - 2¹ = 231040009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231040031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122086 + ... + 123963.

It is an arithmetic number, because the mean of its divisors is an integer number (38629850).

Almost surely, 2^231040011 is an apocalyptic number.

231040011 is a deficient number, since it is larger than the sum of its proper divisors (77998789).

231040011 is a wasteful number, since it uses less digits than its factorization.

231040011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246365.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 231040011 is about 15200.0003618421. Note that the first 3 decimals coincide. The cubic root of 231040011 is about 613.6146674898.

Adding to 231040011 its reverse (110040132), we get a palindrome (341080143).

The spelling of 231040011 in words is "two hundred thirty-one million, forty thousand, eleven".