11109397275 has 36 divisors (see below), whose sum is σ = 19987484608. Its totient is φ = 5898415680.

The previous prime is 11109397241. The next prime is 11109397289. The reversal of 11109397275 is 57279390111.

It is a happy number.

It is not a de Polignac number, because 11109397275 - 2¹² = 11109393179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11109397275.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 60532 + ... + 160881.

Almost surely, 2^11109397275 is an apocalyptic number.

11109397275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11109397275 is a deficient number, since it is larger than the sum of its proper divisors (8878087333).

11109397275 is a wasteful number, since it uses less digits than its factorization.

11109397275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221652 (or 221644 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 45.

The spelling of 11109397275 in words is "eleven billion, one hundred nine million, three hundred ninety-seven thousand, two hundred seventy-five".