231301311211 has 8 divisors (see below), whose sum is σ = 245491782480. Its totient is φ = 217175785728.

The previous prime is 231301311203. The next prime is 231301311239. The reversal of 231301311211 is 112113103132.

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

It is a cyclic number.

It is not a de Polignac number, because 231301311211 - 2³ = 231301311203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231301311271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16229106 + ... + 16243351.

It is an arithmetic number, because the mean of its divisors is an integer number (30686472810).

Almost surely, 2^231301311211 is an apocalyptic number.

231301311211 is a deficient number, since it is larger than the sum of its proper divisors (14190471269).

231301311211 is a wasteful number, since it uses less digits than its factorization.

231301311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32472893.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 231301311211 its reverse (112113103132), we get a palindrome (343414414343).

The spelling of 231301311211 in words is "two hundred thirty-one billion, three hundred one million, three hundred eleven thousand, two hundred eleven".