121293385984 has 27 divisors (see below), whose sum is σ = 242124093127. Its totient is φ = 60643906816.

The previous prime is 121293385981. The next prime is 121293386021. The reversal of 121293385984 is 489583392121.

The square root of 121293385984 is 348272.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121293385981) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5561469 + ... + 5583235.

Almost surely, 2^121293385984 is an apocalyptic number.

121293385984 is the 348272-nd square number.

It is an amenable number.

121293385984 is a deficient number, since it is larger than the sum of its proper divisors (120830707143).

121293385984 is an frugal number, since it uses more digits than its factorization.

121293385984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43550 (or 21769 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 55.

The spelling of 121293385984 in words is "one hundred twenty-one billion, two hundred ninety-three million, three hundred eighty-five thousand, nine hundred eighty-four".