121008 has 20 divisors (see below), whose sum is σ = 312728.
Its totient is φ = 40320.
The previous prime is 121007. The next prime is 121013. The reversal of 121008 is 800121.
Adding to 121008 its reverse (800121), we get a palindrome (921129).
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 120984 and 121002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121001) 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, 1213 + ... + 1308.
2121008 is an apocalyptic number.
It is an amenable number.
121008 is an abundant number, since it is smaller than the sum of its proper divisors (191720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121008 is a wasteful number, since it uses less digits than its factorization.
121008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2532 (or 2526 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 12.
The square root of 121008 is about 347.8620416200.
The cubic root of 121008 is about 49.4619644553.
The spelling of 121008 in words is "one hundred twenty-one thousand, eight".