111118519642 has 8 divisors (see below), whose sum is σ = 179499147156. Its totient is φ = 51285470592.

The previous prime is 111118519627. The next prime is 111118519649. The reversal of 111118519642 is 246915811111.

It can be written as a sum of positive squares in 2 ways, for example, as 111082890681 + 35628961 = 333291^2 + 5969^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 111118519595 and 111118519604.

It is not an unprimeable number, because it can be changed into a prime (111118519649) 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, 2136894583 + ... + 2136894634.

Almost surely, 2^111118519642 is an apocalyptic number.

111118519642 is a deficient number, since it is larger than the sum of its proper divisors (68380627514).

111118519642 is a wasteful number, since it uses less digits than its factorization.

111118519642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273789232.

The product of its digits is 17280, while the sum is 40.

The spelling of 111118519642 in words is "one hundred eleven billion, one hundred eighteen million, five hundred nineteen thousand, six hundred forty-two".