121115328 has 56 divisors (see below), whose sum is σ = 323039232. Its totient is φ = 40045824.

The previous prime is 121115311. The next prime is 121115341. The reversal of 121115328 is 823511121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121115298 and 121115307.

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, 21901 + ... + 26867.

Almost surely, 2^121115328 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 121115328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161519616).

121115328 is an abundant number, since it is smaller than the sum of its proper divisors (201923904).

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

121115328 is a wasteful number, since it uses less digits than its factorization.

121115328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109 (or 5099 counting only the distinct ones).

The product of its digits is 480, while the sum is 24.

The square root of 121115328 is about 11005.2409333008. The cubic root of 121115328 is about 494.7658355758.

Adding to 121115328 its reverse (823511121), we get a palindrome (944626449).

The spelling of 121115328 in words is "one hundred twenty-one million, one hundred fifteen thousand, three hundred twenty-eight".