231301230111 has 24 divisors (see below), whose sum is σ = 381843300384. Its totient is φ = 132167736000.

The previous prime is 231301230103. The next prime is 231301230113. The reversal of 231301230111 is 111032103132.

231301230111 is a `hidden beast` number, since 23 + 1 + 301 + 230 + 111 = 666.

It is not a de Polignac number, because 231301230111 - 2³ = 231301230103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231301230113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3342361 + ... + 3410861.

It is an arithmetic number, because the mean of its divisors is an integer number (15910137516).

Almost surely, 2^231301230111 is an apocalyptic number.

231301230111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

231301230111 is a deficient number, since it is larger than the sum of its proper divisors (150542070273).

231301230111 is a wasteful number, since it uses less digits than its factorization.

231301230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122111 (or 122108 counting only the distinct ones).

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

Adding to 231301230111 its reverse (111032103132), we get a palindrome (342333333243).

The spelling of 231301230111 in words is "two hundred thirty-one billion, three hundred one million, two hundred thirty thousand, one hundred eleven".