121111000984 has 16 divisors (see below), whose sum is σ = 230193855720. Its totient is φ = 59725972800.

The previous prime is 121111000981. The next prime is 121111000991. The reversal of 121111000984 is 489000111121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111000981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103690342 + ... + 103691509.

Almost surely, 2^121111000984 is an apocalyptic number.

It is an amenable number.

121111000984 is a deficient number, since it is larger than the sum of its proper divisors (109082854736).

121111000984 is a wasteful number, since it uses less digits than its factorization.

121111000984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207381930 (or 207381926 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 121111000984 in words is "one hundred twenty-one billion, one hundred eleven million, nine hundred eighty-four", and thus it is an aban number.