121317168 has 160 divisors (see below), whose sum is σ = 386118144. Its totient is φ = 32034816.

The previous prime is 121317143. The next prime is 121317173. The reversal of 121317168 is 861713121.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382546 + ... + 382862.

Almost surely, 2^121317168 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 121317168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193059072).

121317168 is an abundant number, since it is smaller than the sum of its proper divisors (264800976).

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

121317168 is a wasteful number, since it uses less digits than its factorization.

121317168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 413 counting only the distinct ones).

The product of its digits is 2016, while the sum is 30.

The square root of 121317168 is about 11014.4072922695. The cubic root of 121317168 is about 495.0405272399.

It can be divided in two parts, 1213 and 17168, that added together give a palindrome (18381).

The spelling of 121317168 in words is "one hundred twenty-one million, three hundred seventeen thousand, one hundred sixty-eight".