121301604 has 48 divisors (see below), whose sum is σ = 317755200. Its totient is φ = 40013568.

The previous prime is 121301597. The next prime is 121301627. The reversal of 121301604 is 406103121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4687 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (6619900).

Almost surely, 2^121301604 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 121301604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158877600).

121301604 is an abundant number, since it is smaller than the sum of its proper divisors (196453596).

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

121301604 is a wasteful number, since it uses less digits than its factorization.

121301604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11689 (or 11681 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 121301604 is about 11013.7007404414. The cubic root of 121301604 is about 495.0193564515.

Adding to 121301604 its reverse (406103121), we get a palindrome (527404725).

The spelling of 121301604 in words is "one hundred twenty-one million, three hundred one thousand, six hundred four".