121435432 has 16 divisors (see below), whose sum is σ = 235036800. Its totient is φ = 58758960.

The previous prime is 121435429. The next prime is 121435439. The reversal of 121435432 is 234534121.

It is a junction number, because it is equal to n+sod(n) for n = 121435397 and 121435406.

It is not an unprimeable number, because it can be changed into a prime (121435439) 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, 244582 + ... + 245077.

It is an arithmetic number, because the mean of its divisors is an integer number (14689800).

Almost surely, 2^121435432 is an apocalyptic number.

It is an amenable number.

121435432 is a deficient number, since it is larger than the sum of its proper divisors (113601368).

121435432 is a wasteful number, since it uses less digits than its factorization.

121435432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489696 (or 489692 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 121435432 is about 11019.7745893462. The cubic root of 121435432 is about 495.2013356403.

Adding to 121435432 its reverse (234534121), we get a palindrome (355969553).

The spelling of 121435432 in words is "one hundred twenty-one million, four hundred thirty-five thousand, four hundred thirty-two".