231301302111 has 20 divisors (see below), whose sum is σ = 376935456744. Its totient is φ = 140182606800.

The previous prime is 231301302109. The next prime is 231301302143. The reversal of 231301302111 is 111203103132.

It is not a de Polignac number, because 231301302111 - 2¹ = 231301302109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231301302151) 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 19 ways as a sum of consecutive naturals, for example, 129797820 + ... + 129799601.

Almost surely, 2^231301302111 is an apocalyptic number.

231301302111 is a deficient number, since it is larger than the sum of its proper divisors (145634154633).

231301302111 is a wasteful number, since it uses less digits than its factorization.

231301302111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259597444 (or 259597435 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 231301302111 its reverse (111203103132), we get a palindrome (342504405243).

The spelling of 231301302111 in words is "two hundred thirty-one billion, three hundred one million, three hundred two thousand, one hundred eleven".