111045345601 has 4 divisors (see below), whose sum is σ = 117577424772. Its totient is φ = 104513266432.

The previous prime is 111045345599. The next prime is 111045345611. The reversal of 111045345601 is 106543540111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106543540111 = 71 ⋅1500613241.

It can be written as a sum of positive squares in 2 ways, for example, as 65037240576 + 46008105025 = 255024^2 + 214495^2 .

It is a cyclic number.

It is not a de Polignac number, because 111045345601 - 2¹ = 111045345599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111045345611) 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, 3266039560 + ... + 3266039593.

It is an arithmetic number, because the mean of its divisors is an integer number (29394356193).

Almost surely, 2^111045345601 is an apocalyptic number.

It is an amenable number.

111045345601 is a deficient number, since it is larger than the sum of its proper divisors (6532079171).

111045345601 is an equidigital number, since it uses as much as digits as its factorization.

111045345601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532079170.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 111045345601 its reverse (106543540111), we get a palindrome (217588885712).

The spelling of 111045345601 in words is "one hundred eleven billion, forty-five million, three hundred forty-five thousand, six hundred one".