121128360 has 64 divisors (see below), whose sum is σ = 375926400. Its totient is φ = 31186176.

The previous prime is 121128341. The next prime is 121128379. The reversal of 121128360 is 63821121.

It is an interprime number because it is at equal distance from previous prime (121128341) and next prime (121128379).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 121128360.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13924 + ... + 20883.

It is an arithmetic number, because the mean of its divisors is an integer number (5873850).

Almost surely, 2^121128360 is an apocalyptic number.

121128360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121128360 is an abundant number, since it is smaller than the sum of its proper divisors (254798040).

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

121128360 is a wasteful number, since it uses less digits than its factorization.

121128360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34850 (or 34846 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 121128360 is about 11005.8329989147. The cubic root of 121128360 is about 494.7835805280.

Adding to 121128360 its reverse (63821121), we get a palindrome (184949481).

The spelling of 121128360 in words is "one hundred twenty-one million, one hundred twenty-eight thousand, three hundred sixty".