11121123275 has 6 divisors (see below), whose sum is σ = 13790192892. Its totient is φ = 8896898600.

The previous prime is 11121123229. The next prime is 11121123281. The reversal of 11121123275 is 57232112111.

It is a happy number.

It is not a de Polignac number, because 11121123275 - 2²⁰ = 11120074699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222422441 + ... + 222422490.

It is an arithmetic number, because the mean of its divisors is an integer number (2298365482).

Almost surely, 2^11121123275 is an apocalyptic number.

11121123275 is a deficient number, since it is larger than the sum of its proper divisors (2669069617).

11121123275 is an equidigital number, since it uses as much as digits as its factorization.

11121123275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444844941 (or 444844936 counting only the distinct ones).

The product of its digits is 840, while the sum is 26.

Adding to 11121123275 its reverse (57232112111), we get a palindrome (68353235386).

The spelling of 11121123275 in words is "eleven billion, one hundred twenty-one million, one hundred twenty-three thousand, two hundred seventy-five".