121442304 has 52 divisors (see below), whose sum is σ = 323839376. Its totient is φ = 40476672.

The previous prime is 121442303. The next prime is 121442309. The reversal of 121442304 is 403244121.

It is not an unprimeable number, because it can be changed into a prime (121442303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7347 + ... + 17229.

Almost surely, 2^121442304 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 121442304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161919688).

121442304 is an abundant number, since it is smaller than the sum of its proper divisors (202397072).

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

121442304 is an frugal number, since it uses more digits than its factorization.

121442304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9910 (or 9888 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 121442304 is about 11020.0863880461. The cubic root of 121442304 is about 495.2106765697.

Adding to 121442304 its reverse (403244121), we get a palindrome (524686425).

The spelling of 121442304 in words is "one hundred twenty-one million, four hundred forty-two thousand, three hundred four".