111423031242 has 16 divisors (see below), whose sum is σ = 223190500032. Its totient is φ = 37083604160.

The previous prime is 111423031241. The next prime is 111423031301. The reversal of 111423031242 is 242130324111.

111423031242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (111423031241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14347359 + ... + 14355122.

It is an arithmetic number, because the mean of its divisors is an integer number (13949406252).

Almost surely, 2^111423031242 is an apocalyptic number.

111423031242 is an abundant number, since it is smaller than the sum of its proper divisors (111767468790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111423031242 is a wasteful number, since it uses less digits than its factorization.

111423031242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28703133.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 111423031242 its reverse (242130324111), we get a palindrome (353553355353).

The spelling of 111423031242 in words is "one hundred eleven billion, four hundred twenty-three million, thirty-one thousand, two hundred forty-two".