111706027987 has 4 divisors (see below), whose sum is σ = 112130766000. Its totient is φ = 111281289976.

The previous prime is 111706027963. The next prime is 111706028009. The reversal of 111706027987 is 789720607111.

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

It is a cyclic number.

It is not a de Polignac number, because 111706027987 - 2²³ = 111697639379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111706027987.

It is not an unprimeable number, because it can be changed into a prime (111706027907) 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, 212368612 + ... + 212369137.

It is an arithmetic number, because the mean of its divisors is an integer number (28032691500).

Almost surely, 2^111706027987 is an apocalyptic number.

111706027987 is a deficient number, since it is larger than the sum of its proper divisors (424738013).

111706027987 is an equidigital number, since it uses as much as digits as its factorization.

111706027987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424738012.

The product of its (nonzero) digits is 296352, while the sum is 49.

The spelling of 111706027987 in words is "one hundred eleven billion, seven hundred six million, twenty-seven thousand, nine hundred eighty-seven".