121303555608 has 32 divisors (see below), whose sum is σ = 304059067200. Its totient is φ = 40327828128.

The previous prime is 121303555519. The next prime is 121303555621. The reversal of 121303555608 is 806555303121.

121303555608 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 6658866 + ... + 6677057.

It is an arithmetic number, because the mean of its divisors is an integer number (9501845850).

Almost surely, 2^121303555608 is an apocalyptic number.

It is an amenable number.

121303555608 is an abundant number, since it is smaller than the sum of its proper divisors (182755511592).

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

121303555608 is a wasteful number, since it uses less digits than its factorization.

121303555608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13336311 (or 13336307 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

Adding to 121303555608 its reverse (806555303121), we get a palindrome (927858858729).

The spelling of 121303555608 in words is "one hundred twenty-one billion, three hundred three million, five hundred fifty-five thousand, six hundred eight".