121130144 has 48 divisors (see below), whose sum is σ = 256919040. Its totient is φ = 56052480.

The previous prime is 121130137. The next prime is 121130153. The reversal of 121130144 is 441031121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20162 + ... + 25470.

It is an arithmetic number, because the mean of its divisors is an integer number (5352480).

Almost surely, 2^121130144 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 121130144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128459520).

121130144 is an abundant number, since it is smaller than the sum of its proper divisors (135788896).

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

121130144 is a wasteful number, since it uses less digits than its factorization.

121130144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373 (or 5365 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 121130144 is about 11005.9140465479. The cubic root of 121130144 is about 494.7860096029.

Adding to 121130144 its reverse (441031121), we get a palindrome (562161265).

The spelling of 121130144 in words is "one hundred twenty-one million, one hundred thirty thousand, one hundred forty-four".