11288121 has 8 divisors (see below), whose sum is σ = 16208640. Its totient is φ = 6946512.

The previous prime is 11288117. The next prime is 11288171. The reversal of 11288121 is 12188211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11288121 - 2² = 11288117 is a prime.

It is a super-3 number, since 3×11288121³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11288091 and 11288100.

It is not an unprimeable number, because it can be changed into a prime (11288171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144681 + ... + 144758.

It is an arithmetic number, because the mean of its divisors is an integer number (2026080).

Almost surely, 2^11288121 is an apocalyptic number.

It is an amenable number.

11288121 is a deficient number, since it is larger than the sum of its proper divisors (4920519).

11288121 is a wasteful number, since it uses less digits than its factorization.

11288121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289455.

The product of its digits is 256, while the sum is 24.

The square root of 11288121 is about 3359.7799035056. The cubic root of 11288121 is about 224.3230418198.

The spelling of 11288121 in words is "eleven million, two hundred eighty-eight thousand, one hundred twenty-one".