121325668 has 18 divisors (see below), whose sum is σ = 225546146. Its totient is φ = 57093888.

The previous prime is 121325569. The next prime is 121325669. The reversal of 121325668 is 866523121.

It can be written as a sum of positive squares in 3 ways, for example, as 31606884 + 89718784 = 5622^2 + 9472^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (121325669) 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 in 5 ways as a sum of consecutive naturals, for example, 51321 + ... + 53632.

Almost surely, 2^121325668 is an apocalyptic number.

It is an amenable number.

121325668 is a deficient number, since it is larger than the sum of its proper divisors (104220478).

121325668 is a wasteful number, since it uses less digits than its factorization.

121325668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104991 (or 104972 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 121325668 is about 11014.7931437681. The cubic root of 121325668 is about 495.0520885226.

Adding to 121325668 its reverse (866523121), we get a palindrome (987848789).

The spelling of 121325668 in words is "one hundred twenty-one million, three hundred twenty-five thousand, six hundred sixty-eight".