111716012321 has 8 divisors (see below), whose sum is σ = 116576651904. Its totient is φ = 106855657920.

The previous prime is 111716012311. The next prime is 111716012339. The reversal of 111716012321 is 123210617111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111716012321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111716012311) by changing a digit.

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, 1252025 + ... + 1338281.

It is an arithmetic number, because the mean of its divisors is an integer number (14572081488).

Almost surely, 2^111716012321 is an apocalyptic number.

It is an amenable number.

111716012321 is a deficient number, since it is larger than the sum of its proper divisors (4860639583).

111716012321 is an equidigital number, since it uses as much as digits as its factorization.

111716012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142591.

The product of its (nonzero) digits is 504, while the sum is 26.

Adding to 111716012321 its reverse (123210617111), we get a palindrome (234926629432).

The spelling of 111716012321 in words is "one hundred eleven billion, seven hundred sixteen million, twelve thousand, three hundred twenty-one".