121344144 has 20 divisors (see below), whose sum is σ = 313472496. Its totient is φ = 40448032.

The previous prime is 121344131. The next prime is 121344161. The reversal of 121344144 is 441443121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263954 + ... + 1264049.

Almost surely, 2^121344144 is an apocalyptic number.

It is an amenable number.

121344144 is an abundant number, since it is smaller than the sum of its proper divisors (192128352).

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

121344144 is a wasteful number, since it uses less digits than its factorization.

121344144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528014 (or 2528008 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 121344144 is about 11015.6318021256. The cubic root of 121344144 is about 495.0772168082.

Adding to 121344144 its reverse (441443121), we get a palindrome (562787265).

The spelling of 121344144 in words is "one hundred twenty-one million, three hundred forty-four thousand, one hundred forty-four".