121683112392 has 32 divisors (see below), whose sum is σ = 317434207680. Its totient is φ = 38797513920.

The previous prime is 121683112333. The next prime is 121683112399. The reversal of 121683112392 is 293211386121.

It is a self number, because there is not a number n which added to its sum of digits gives 121683112392.

It is not an unprimeable number, because it can be changed into a prime (121683112399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110219659 + ... + 110220762.

It is an arithmetic number, because the mean of its divisors is an integer number (9919818990).

Almost surely, 2^121683112392 is an apocalyptic number.

121683112392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121683112392 is an abundant number, since it is smaller than the sum of its proper divisors (195751095288).

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

121683112392 is a wasteful number, since it uses less digits than its factorization.

121683112392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220440453 (or 220440449 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The spelling of 121683112392 in words is "one hundred twenty-one billion, six hundred eighty-three million, one hundred twelve thousand, three hundred ninety-two".