111112310231 has 4 divisors (see below), whose sum is σ = 119659411032. Its totient is φ = 102565209432.

The previous prime is 111112310167. The next prime is 111112310273. The reversal of 111112310231 is 132013211111.

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 111112310231 - 2⁶ = 111112310167 is a prime.

It is a super-2 number, since 2×111112310231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112310831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4273550381 + ... + 4273550406.

It is an arithmetic number, because the mean of its divisors is an integer number (29914852758).

Almost surely, 2^111112310231 is an apocalyptic number.

111112310231 is a deficient number, since it is larger than the sum of its proper divisors (8547100801).

111112310231 is an equidigital number, since it uses as much as digits as its factorization.

111112310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547100800.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 111112310231 its reverse (132013211111), we get a palindrome (243125521342).

The spelling of 111112310231 in words is "one hundred eleven billion, one hundred twelve million, three hundred ten thousand, two hundred thirty-one".