121983108 has 48 divisors (see below), whose sum is σ = 310247616. Its totient is φ = 37077120.

The previous prime is 121983107. The next prime is 121983137. The reversal of 121983108 is 801389121.

It is not an unprimeable number, because it can be changed into a prime (121983107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8238 + ... + 17658.

It is an arithmetic number, because the mean of its divisors is an integer number (6463492).

Almost surely, 2^121983108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121983108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155123808).

121983108 is an abundant number, since it is smaller than the sum of its proper divisors (188264508).

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

121983108 is a wasteful number, since it uses less digits than its factorization.

121983108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524 (or 9522 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 121983108 is about 11044.5963258057. The cubic root of 121983108 is about 495.9446749339.

The spelling of 121983108 in words is "one hundred twenty-one million, nine hundred eighty-three thousand, one hundred eight".