231232100111 has 8 divisors (see below), whose sum is σ = 236980289280. Its totient is φ = 225554441112.

The previous prime is 231232100107. The next prime is 231232100137. The reversal of 231232100111 is 111001232132.

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 231232100111 - 2² = 231232100107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231232100111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231232100101) 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, 17625905 + ... + 17639018.

It is an arithmetic number, because the mean of its divisors is an integer number (29622536160).

Almost surely, 2^231232100111 is an apocalyptic number.

231232100111 is a deficient number, since it is larger than the sum of its proper divisors (5748189169).

231232100111 is an equidigital number, since it uses as much as digits as its factorization.

231232100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35265085.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 231232100111 its reverse (111001232132), we get a palindrome (342233332243).

The spelling of 231232100111 in words is "two hundred thirty-one billion, two hundred thirty-two million, one hundred thousand, one hundred eleven".