121432404 has 12 divisors (see below), whose sum is σ = 283342304. Its totient is φ = 40477464.

The previous prime is 121432393. The next prime is 121432453. The reversal of 121432404 is 404234121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 5059672 + ... + 5059695.

Almost surely, 2^121432404 is an apocalyptic number.

It is an amenable number.

121432404 is an abundant number, since it is smaller than the sum of its proper divisors (161909900).

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

121432404 is a wasteful number, since it uses less digits than its factorization.

121432404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119374 (or 10119372 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 121432404 is about 11019.6371991096. The cubic root of 121432404 is about 495.1972196475.

Adding to 121432404 its reverse (404234121), we get a palindrome (525666525).

The spelling of 121432404 in words is "one hundred twenty-one million, four hundred thirty-two thousand, four hundred four".