111275270605 has 4 divisors (see below), whose sum is σ = 133530324732. Its totient is φ = 89020216480.

The previous prime is 111275270593. The next prime is 111275270609. The reversal of 111275270605 is 506072572111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60731687844 + 50543582761 = 246438^2 + 224819^2 .

It is not a de Polignac number, because 111275270605 - 2⁵ = 111275270573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111275270609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11127527056 + ... + 11127527065.

It is an arithmetic number, because the mean of its divisors is an integer number (33382581183).

Almost surely, 2^111275270605 is an apocalyptic number.

It is an amenable number.

111275270605 is a deficient number, since it is larger than the sum of its proper divisors (22255054127).

111275270605 is an equidigital number, since it uses as much as digits as its factorization.

111275270605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22255054126.

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 111275270605 in words is "one hundred eleven billion, two hundred seventy-five million, two hundred seventy thousand, six hundred five".