111042721352705 has 16 divisors (see below), whose sum is σ = 134039007676224. Its totient is φ = 88310562584640.

The previous prime is 111042721352687. The next prime is 111042721352707. The reversal of 111042721352705 is 507253127240111.

It is a de Polignac number, because none of the positive numbers 2^k-111042721352705 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111042721352707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96104822 + ... + 97253391.

It is an arithmetic number, because the mean of its divisors is an integer number (8377437979764).

Almost surely, 2^{111042721352705} is an apocalyptic number.

It is an amenable number.

111042721352705 is a deficient number, since it is larger than the sum of its proper divisors (22996286323519).

111042721352705 is a wasteful number, since it uses less digits than its factorization.

111042721352705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193358896.

The product of its (nonzero) digits is 117600, while the sum is 41.

Adding to 111042721352705 its reverse (507253127240111), we get a palindrome (618295848592816).

The spelling of 111042721352705 in words is "one hundred eleven trillion, forty-two billion, seven hundred twenty-one million, three hundred fifty-two thousand, seven hundred five".