111386120688831 has 8 divisors (see below), whose sum is σ = 148688936413360. Its totient is φ = 74170359378432.

The previous prime is 111386120688769. The next prime is 111386120688847. The reversal of 111386120688831 is 138886021683111.

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

It is not a de Polignac number, because 111386120688831 - 2³⁹ = 110836364874943 is a prime.

It is a super-3 number, since 3×111386120688831³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111386120688431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21763600546 + ... + 21763605663.

It is an arithmetic number, because the mean of its divisors is an integer number (18586117051670).

Almost surely, 2^{111386120688831} is an apocalyptic number.

111386120688831 is a deficient number, since it is larger than the sum of its proper divisors (37302815724529).

111386120688831 is an equidigital number, since it uses as much as digits as its factorization.

111386120688831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43527207065.

The product of its (nonzero) digits is 2654208, while the sum is 57.

The spelling of 111386120688831 in words is "one hundred eleven trillion, three hundred eighty-six billion, one hundred twenty million, six hundred eighty-eight thousand, eight hundred thirty-one".