121369984 has 32 divisors (see below), whose sum is σ = 242290800. Its totient is φ = 60559872.

The previous prime is 121369957. The next prime is 121370009. The reversal of 121369984 is 489963121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 121369984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113002 + ... + 114070.

Almost surely, 2^121369984 is an apocalyptic number.

It is an amenable number.

121369984 is a deficient number, since it is larger than the sum of its proper divisors (120920816).

121369984 is an equidigital number, since it uses as much as digits as its factorization.

121369984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970 (or 1958 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 121369984 is about 11016.8046184000. The cubic root of 121369984 is about 495.1123562250.

The spelling of 121369984 in words is "one hundred twenty-one million, three hundred sixty-nine thousand, nine hundred eighty-four".