121443104 has 24 divisors (see below), whose sum is σ = 253156428. Its totient is φ = 57149440.

The previous prime is 121443103. The next prime is 121443163. The reversal of 121443104 is 401344121.

It can be written as a sum of positive squares in 2 ways, for example, as 121440400 + 2704 = 11020^2 + 52^2 .

It is not an unprimeable number, because it can be changed into a prime (121443103) 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, 111077 + ... + 112164.

Almost surely, 2^121443104 is an apocalyptic number.

It is an amenable number.

121443104 is an abundant number, since it is smaller than the sum of its proper divisors (131713324).

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

121443104 is a wasteful number, since it uses less digits than its factorization.

121443104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223268 (or 223260 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 121443104 is about 11020.1226853425. The cubic root of 121443104 is about 495.2117639659.

Adding to 121443104 its reverse (401344121), we get a palindrome (522787225).

The spelling of 121443104 in words is "one hundred twenty-one million, four hundred forty-three thousand, one hundred four".