231313320411 has 4 divisors (see below), whose sum is σ = 308417760552. Its totient is φ = 154208880272.

The previous prime is 231313320323. The next prime is 231313320421. The reversal of 231313320411 is 114023313132.

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 231313320411 - 2⁹ = 231313319899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231313320421) 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 3 ways as a sum of consecutive naturals, for example, 38552220066 + ... + 38552220071.

It is an arithmetic number, because the mean of its divisors is an integer number (77104440138).

Almost surely, 2^231313320411 is an apocalyptic number.

231313320411 is a deficient number, since it is larger than the sum of its proper divisors (77104440141).

231313320411 is an equidigital number, since it uses as much as digits as its factorization.

231313320411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77104440140.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 231313320411 its reverse (114023313132), we get a palindrome (345336633543).

The spelling of 231313320411 in words is "two hundred thirty-one billion, three hundred thirteen million, three hundred twenty thousand, four hundred eleven".