111211042 has 8 divisors (see below), whose sum is σ = 176629356. Its totient is φ = 52334592.

The previous prime is 111211033. The next prime is 111211081. The reversal of 111211042 is 240112111.

It can be written as a sum of positive squares in 2 ways, for example, as 107931321 + 3279721 = 10389^2 + 1811^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1635423 + ... + 1635490.

Almost surely, 2^111211042 is an apocalyptic number.

111211042 is a deficient number, since it is larger than the sum of its proper divisors (65418314).

111211042 is a wasteful number, since it uses less digits than its factorization.

111211042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270932.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 111211042 is about 10545.6646068420. The cubic root of 111211042 is about 480.8939388646.

Adding to 111211042 its reverse (240112111), we get a palindrome (351323153).

The spelling of 111211042 in words is "one hundred eleven million, two hundred eleven thousand, forty-two".