121324424 has 48 divisors (see below), whose sum is σ = 259347600. Its totient is φ = 53037504.

The previous prime is 121324417. The next prime is 121324433. The reversal of 121324424 is 424423121.

It is a self number, because there is not a number n which added to its sum of digits gives 121324424.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 23327 + ... + 28049.

It is an arithmetic number, because the mean of its divisors is an integer number (5403075).

Almost surely, 2^121324424 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 121324424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129673800).

121324424 is an abundant number, since it is smaller than the sum of its proper divisors (138023176).

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

121324424 is a wasteful number, since it uses less digits than its factorization.

121324424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774 (or 4757 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 121324424 is about 11014.7366741107. The cubic root of 121324424 is about 495.0503965286.

Adding to 121324424 its reverse (424423121), we get a palindrome (545747545).

The spelling of 121324424 in words is "one hundred twenty-one million, three hundred twenty-four thousand, four hundred twenty-four".