121340432 has 20 divisors (see below), whose sum is σ = 235280700. Its totient is φ = 60622848.

The previous prime is 121340423. The next prime is 121340473. The reversal of 121340432 is 234043121.

It can be written as a sum of positive squares in 2 ways, for example, as 13512976 + 107827456 = 3676^2 + 10384^2 .

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 3 ways as a sum of consecutive naturals, for example, 27944 + ... + 31992.

It is an arithmetic number, because the mean of its divisors is an integer number (11764035).

Almost surely, 2^121340432 is an apocalyptic number.

It is an amenable number.

121340432 is a deficient number, since it is larger than the sum of its proper divisors (113940268).

121340432 is a wasteful number, since it uses less digits than its factorization.

121340432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930 (or 5924 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 121340432 is about 11015.4633129978. The cubic root of 121340432 is about 495.0721685070.

Adding to 121340432 its reverse (234043121), we get a palindrome (355383553).

The spelling of 121340432 in words is "one hundred twenty-one million, three hundred forty thousand, four hundred thirty-two".