111345456611 has 4 divisors (see below), whose sum is σ = 113232667800. Its totient is φ = 109458245424.

The previous prime is 111345456601. The next prime is 111345456619. The reversal of 111345456611 is 116654543111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116654543111 = 23 ⋅5071936657.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111345456611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111345456619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943605506 + ... + 943605623.

It is an arithmetic number, because the mean of its divisors is an integer number (28308166950).

Almost surely, 2^111345456611 is an apocalyptic number.

111345456611 is a deficient number, since it is larger than the sum of its proper divisors (1887211189).

111345456611 is an equidigital number, since it uses as much as digits as its factorization.

111345456611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887211188.

The product of its digits is 43200, while the sum is 38.

Adding to 111345456611 its reverse (116654543111), we get a palindrome (227999999722).

The spelling of 111345456611 in words is "one hundred eleven billion, three hundred forty-five million, four hundred fifty-six thousand, six hundred eleven".