121711608 has 96 divisors (see below), whose sum is σ = 346226400. Its totient is φ = 38572800.

The previous prime is 121711567. The next prime is 121711609. The reversal of 121711608 is 806117121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121711609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147838 + ... + 148658.

It is an arithmetic number, because the mean of its divisors is an integer number (3606525).

Almost surely, 2^121711608 is an apocalyptic number.

121711608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121711608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173113200).

121711608 is an abundant number, since it is smaller than the sum of its proper divisors (224514792).

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

121711608 is a wasteful number, since it uses less digits than its factorization.

121711608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The square root of 121711608 is about 11032.2984006054. The cubic root of 121711608 is about 495.5764572846.

Adding to 121711608 its reverse (806117121), we get a palindrome (927828729).

The spelling of 121711608 in words is "one hundred twenty-one million, seven hundred eleven thousand, six hundred eight".