231320234111 has 4 divisors (see below), whose sum is σ = 231686827824. Its totient is φ = 230953640400.

The previous prime is 231320234099. The next prime is 231320234153. The reversal of 231320234111 is 111432023132.

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 231320234111 - 2²⁶ = 231253125247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231320234161) 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, 183295910 + ... + 183297171.

It is an arithmetic number, because the mean of its divisors is an integer number (57921706956).

Almost surely, 2^231320234111 is an apocalyptic number.

231320234111 is a deficient number, since it is larger than the sum of its proper divisors (366593713).

231320234111 is an equidigital number, since it uses as much as digits as its factorization.

231320234111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366593712.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 231320234111 its reverse (111432023132), we get a palindrome (342752257243).

The spelling of 231320234111 in words is "two hundred thirty-one billion, three hundred twenty million, two hundred thirty-four thousand, one hundred eleven".