121115853328 has 40 divisors (see below), whose sum is σ = 236507211776. Its totient is φ = 60083596800.

The previous prime is 121115853289. The next prime is 121115853349. The reversal of 121115853328 is 823358511121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987025 + ... + 1102927.

Almost surely, 2^121115853328 is an apocalyptic number.

It is an amenable number.

121115853328 is a deficient number, since it is larger than the sum of its proper divisors (115391358448).

121115853328 is a wasteful number, since it uses less digits than its factorization.

121115853328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116423 (or 116417 counting only the distinct ones).

The product of its digits is 57600, while the sum is 40.

The spelling of 121115853328 in words is "one hundred twenty-one billion, one hundred fifteen million, eight hundred fifty-three thousand, three hundred twenty-eight".