111031120034242 has 4 divisors (see below), whose sum is σ = 166546680051366. Its totient is φ = 55515560017120.

The previous prime is 111031120034239. The next prime is 111031120034309. The reversal of 111031120034242 is 242430021130111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68006428053201 + 43024691981041 = 8246601^2 + 6559321^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27757780008559 + ... + 27757780008562.

Almost surely, 2^{111031120034242} is an apocalyptic number.

111031120034242 is a deficient number, since it is larger than the sum of its proper divisors (55515560017124).

111031120034242 is an equidigital number, since it uses as much as digits as its factorization.

111031120034242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55515560017123.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 111031120034242 its reverse (242430021130111), we get a palindrome (353461141164353).

The spelling of 111031120034242 in words is "one hundred eleven trillion, thirty-one billion, one hundred twenty million, thirty-four thousand, two hundred forty-two".