121344424 has 8 divisors (see below), whose sum is σ = 227520810. Its totient is φ = 60672208.

The previous prime is 121344407. The next prime is 121344451. The reversal of 121344424 is 424443121.

It can be written as a sum of positive squares in only one way, i.e., 76212900 + 45131524 = 8730^2 + 6718^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7584019 + ... + 7584034.

Almost surely, 2^121344424 is an apocalyptic number.

It is an amenable number.

121344424 is a deficient number, since it is larger than the sum of its proper divisors (106176386).

121344424 is a wasteful number, since it uses less digits than its factorization.

121344424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15168059 (or 15168055 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 121344424 is about 11015.6445113302. The cubic root of 121344424 is about 495.0775976027.

Adding to 121344424 its reverse (424443121), we get a palindrome (545787545).

The spelling of 121344424 in words is "one hundred twenty-one million, three hundred forty-four thousand, four hundred twenty-four".