120432121 has 8 divisors (see below), whose sum is σ = 123689984. Its totient is φ = 117195120.

The previous prime is 120432119. The next prime is 120432133. The reversal of 120432121 is 121234021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120432121 - 2¹ = 120432119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120432095 and 120432104.

It is not an unprimeable number, because it can be changed into a prime (120432181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6856 + ... + 16966.

It is an arithmetic number, because the mean of its divisors is an integer number (15461248).

Almost surely, 2^120432121 is an apocalyptic number.

It is an amenable number.

120432121 is a deficient number, since it is larger than the sum of its proper divisors (3257863).

120432121 is a wasteful number, since it uses less digits than its factorization.

120432121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10431.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 120432121 is about 10974.1569607875. The cubic root of 120432121 is about 493.8337622995.

Adding to 120432121 its reverse (121234021), we get a palindrome (241666142).

The spelling of 120432121 in words is "one hundred twenty million, four hundred thirty-two thousand, one hundred twenty-one".