111123680369 has 8 divisors (see below), whose sum is σ = 119685734952. Its totient is φ = 102563637120.

The previous prime is 111123680341. The next prime is 111123680399. The reversal of 111123680369 is 963086321111.

It can be written as a sum of positive squares in 4 ways, for example, as 18113929744 + 93009750625 = 134588^2 + 304975^2 .

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 111123680369 - 2¹² = 111123676273 is a prime.

It is a super-2 number, since 2×111123680369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111123680399) 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, 387092 + ... + 609989.

It is an arithmetic number, because the mean of its divisors is an integer number (14960716869).

Almost surely, 2^111123680369 is an apocalyptic number.

It is an amenable number.

111123680369 is a deficient number, since it is larger than the sum of its proper divisors (8562054583).

111123680369 is an equidigital number, since it uses as much as digits as its factorization.

111123680369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005667.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 111123680369 in words is "one hundred eleven billion, one hundred twenty-three million, six hundred eighty thousand, three hundred sixty-nine".