121303328 has 12 divisors (see below), whose sum is σ = 238815990. Its totient is φ = 60651648.

The previous prime is 121303327. The next prime is 121303331. The reversal of 121303328 is 823303121.

It can be written as a sum of positive squares in only one way, i.e., 80496784 + 40806544 = 8972^2 + 6388^2 .

It is not an unprimeable number, because it can be changed into a prime (121303321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1895333 + ... + 1895396.

Almost surely, 2^121303328 is an apocalyptic number.

It is an amenable number.

121303328 is a deficient number, since it is larger than the sum of its proper divisors (117512662).

121303328 is an equidigital number, since it uses as much as digits as its factorization.

121303328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790739 (or 3790731 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 121303328 is about 11013.7790063175. The cubic root of 121303328 is about 495.0217015959.

Adding to 121303328 its reverse (823303121), we get a palindrome (944606449).

The spelling of 121303328 in words is "one hundred twenty-one million, three hundred three thousand, three hundred twenty-eight".