121328 has 10 divisors (see below), whose sum is σ = 235104. Its totient is φ = 60656.

The previous prime is 121327. The next prime is 121333. The reversal of 121328 is 823121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3776 + ... + 3807.

2¹²¹³²⁸ is an apocalyptic number.

It is an amenable number.

121328 is a deficient number, since it is larger than the sum of its proper divisors (113776).

121328 is an equidigital number, since it uses as much as digits as its factorization.

121328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591 (or 7585 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 121328 is about 348.3216903955. The cubic root of 121328 is about 49.5055260300.

Adding to 121328 its reverse (823121), we get a palindrome (944449).

The spelling of 121328 in words is "one hundred twenty-one thousand, three hundred twenty-eight".