111120012231 has 8 divisors (see below), whose sum is σ = 148172605680. Its totient is φ = 74073713472.

The previous prime is 111120012221. The next prime is 111120012239. The reversal of 111120012231 is 132210021111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111120012231 - 2⁹ = 111120011719 is a prime.

It is a super-2 number, since 2×111120012231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111120012231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120012239) 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, 1532326 + ... + 1603203.

It is an arithmetic number, because the mean of its divisors is an integer number (18521575710).

Almost surely, 2^111120012231 is an apocalyptic number.

111120012231 is a deficient number, since it is larger than the sum of its proper divisors (37052593449).

111120012231 is a wasteful number, since it uses less digits than its factorization.

111120012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147345.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111120012231 its reverse (132210021111), we get a palindrome (243330033342).

The spelling of 111120012231 in words is "one hundred eleven billion, one hundred twenty million, twelve thousand, two hundred thirty-one".