111120957887 has 8 divisors (see below), whose sum is σ = 111387934080. Its totient is φ = 110854303360.

The previous prime is 111120957877. The next prime is 111120957991. The reversal of 111120957887 is 788759021111.

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

It is a cyclic number.

It is not a de Polignac number, because 111120957887 - 2¹⁸ = 111120695743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120957817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618587 + ... + 777747.

It is an arithmetic number, because the mean of its divisors is an integer number (13923491760).

Almost surely, 2^111120957887 is an apocalyptic number.

111120957887 is a deficient number, since it is larger than the sum of its proper divisors (266976193).

111120957887 is an equidigital number, since it uses as much as digits as its factorization.

111120957887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160833.

The product of its (nonzero) digits is 282240, while the sum is 50.

Adding to 111120957887 its reverse (788759021111), we get a palindrome (899879978998).

The spelling of 111120957887 in words is "one hundred eleven billion, one hundred twenty million, nine hundred fifty-seven thousand, eight hundred eighty-seven".