121000104 has 24 divisors (see below), whose sum is σ = 327708810. Its totient is φ = 40333344.

The previous prime is 121000049. The next prime is 121000123. The reversal of 121000104 is 401000121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 120956004 + 44100 = 10998^2 + 210^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 840207 + ... + 840350.

Almost surely, 2^121000104 is an apocalyptic number.

It is an amenable number.

121000104 is an abundant number, since it is smaller than the sum of its proper divisors (206708706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121000104 is a wasteful number, since it uses less digits than its factorization.

121000104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680569 (or 1680562 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 121000104 is about 11000.0047272717. The cubic root of 121000104 is about 494.6088860309.

Adding to 121000104 its reverse (401000121), we get a palindrome (522000225).

It can be divided in two parts, 121000 and 104, that added together give a square (121104 = 348²).

The spelling of 121000104 in words is "one hundred twenty-one million, one hundred four", and thus it is an aban number.