231321321230011 has 2 divisors, whose sum is σ = 231321321230012. Its totient is φ = 231321321230010.

The previous prime is 231321321230009. The next prime is 231321321230063. The reversal of 231321321230011 is 110032123123132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231321321230011 - 2¹ = 231321321230009 is a prime.

Together with 231321321230009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (231321321230911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115660660615005 + 115660660615006.

It is an arithmetic number, because the mean of its divisors is an integer number (115660660615006).

Almost surely, 2^{231321321230011} is an apocalyptic number.

231321321230011 is a deficient number, since it is larger than the sum of its proper divisors (1).

231321321230011 is an equidigital number, since it uses as much as digits as its factorization.

231321321230011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 231321321230011 its reverse (110032123123132), we get a palindrome (341353444353143).

The spelling of 231321321230011 in words is "two hundred thirty-one trillion, three hundred twenty-one billion, three hundred twenty-one million, two hundred thirty thousand, eleven".