231313210311 has 8 divisors (see below), whose sum is σ = 308441476080. Its totient is φ = 154196875712.

The previous prime is 231313210243. The next prime is 231313210339. The reversal of 231313210311 is 113012313132.

It is a happy number.

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 231313210311 - 2¹¹ = 231313208263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231313210391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2937456 + ... + 3015173.

It is an arithmetic number, because the mean of its divisors is an integer number (38555184510).

Almost surely, 2^231313210311 is an apocalyptic number.

231313210311 is a deficient number, since it is larger than the sum of its proper divisors (77128265769).

231313210311 is a wasteful number, since it uses less digits than its factorization.

231313210311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5965585.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 231313210311 its reverse (113012313132), we get a palindrome (344325523443).

The spelling of 231313210311 in words is "two hundred thirty-one billion, three hundred thirteen million, two hundred ten thousand, three hundred eleven".