121051328 has 56 divisors (see below), whose sum is σ = 247369584. Its totient is φ = 58752000.

The previous prime is 121051327. The next prime is 121051331. The reversal of 121051328 is 823150121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121051327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394151 + ... + 394457.

It is an arithmetic number, because the mean of its divisors is an integer number (4417314).

Almost surely, 2^121051328 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 121051328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123684792).

121051328 is an abundant number, since it is smaller than the sum of its proper divisors (126318256).

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

121051328 is a wasteful number, since it uses less digits than its factorization.

121051328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 121051328 is about 11002.3328435382. The cubic root of 121051328 is about 494.6786718420.

The spelling of 121051328 in words is "one hundred twenty-one million, fifty-one thousand, three hundred twenty-eight".