111686012338 has 16 divisors (see below), whose sum is σ = 172069185024. Its totient is φ = 54329834160.

The previous prime is 111686012309. The next prime is 111686012341. The reversal of 111686012338 is 833210686111.

It is a happy number.

It is a super-3 number, since 3×111686012338³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111686012338.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168431 + ... + 1260397.

It is an arithmetic number, because the mean of its divisors is an integer number (10754324064).

Almost surely, 2^111686012338 is an apocalyptic number.

111686012338 is a deficient number, since it is larger than the sum of its proper divisors (60383172686).

111686012338 is a wasteful number, since it uses less digits than its factorization.

111686012338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108417.

The product of its (nonzero) digits is 41472, while the sum is 40.

Adding to 111686012338 its reverse (833210686111), we get a palindrome (944896698449).

The spelling of 111686012338 in words is "one hundred eleven billion, six hundred eighty-six million, twelve thousand, three hundred thirty-eight".