121004 has 18 divisors (see below), whose sum is σ = 230580.
Its totient is φ = 55536.
The previous prime is 121001. The next prime is 121007. The reversal of 121004 is 400121.
It is an interprime number because it is at equal distance from previous prime (121001) and next prime (121007).
It is a nialpdrome in base 13.
It is a junction number, because it is equal to n+sod(n) for n = 120982 and 121000.
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 5 ways as a sum of consecutive naturals, for example, 587 + ... + 765.
It is an arithmetic number, because the mean of its divisors is an integer number (12810).
2121004 is an apocalyptic number.
It is an amenable number.
121004 is a deficient number, since it is larger than the sum of its proper divisors (109576).
121004 is a wasteful number, since it uses less digits than its factorization.
121004 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 209 (or 194 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 8.
The square root of 121004 is about 347.8562921668.
The cubic root of 121004 is about 49.4614194499.
Adding to 121004 its reverse (400121), we get a palindrome (521125).
It can be divided in two parts, 12100 and 4, that multiplied together give a square (48400 = 2202).
The spelling of 121004 in words is "one hundred twenty-one thousand, four", and thus it is an iban number.