111231110011 has 4 divisors (see below), whose sum is σ = 127121268592. Its totient is φ = 95340951432.

The previous prime is 111231109981. The next prime is 111231110027. The reversal of 111231110011 is 110011132111.

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 111231110011 - 2²⁹ = 110694239099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111231109973 and 111231110000.

It is not an unprimeable number, because it can be changed into a prime (111231111011) 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, 7945079280 + ... + 7945079293.

It is an arithmetic number, because the mean of its divisors is an integer number (31780317148).

Almost surely, 2^111231110011 is an apocalyptic number.

111231110011 is a deficient number, since it is larger than the sum of its proper divisors (15890158581).

111231110011 is an equidigital number, since it uses as much as digits as its factorization.

111231110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15890158580.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 111231110011 its reverse (110011132111), we get a palindrome (221242242122).

The spelling of 111231110011 in words is "one hundred eleven billion, two hundred thirty-one million, one hundred ten thousand, eleven".