121432424 has 16 divisors (see below), whose sum is σ = 228259620. Its totient is φ = 60563200.

The previous prime is 121432393. The next prime is 121432453. The reversal of 121432424 is 424234121.

It can be written as a sum of positive squares in 2 ways, for example, as 121396324 + 36100 = 11018^2 + 190^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121432424.

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, 15719 + ... + 22134.

Almost surely, 2^121432424 is an apocalyptic number.

It is an amenable number.

121432424 is a deficient number, since it is larger than the sum of its proper divisors (106827196).

121432424 is a wasteful number, since it uses less digits than its factorization.

121432424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38260 (or 38256 counting only the distinct ones).

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

The square root of 121432424 is about 11019.6381065805. The cubic root of 121432424 is about 495.1972468339.

Adding to 121432424 its reverse (424234121), we get a palindrome (545666545).

The spelling of 121432424 in words is "one hundred twenty-one million, four hundred thirty-two thousand, four hundred twenty-four".