12120329 has 4 divisors (see below), whose sum is σ = 13052676. Its totient is φ = 11187984.

The previous prime is 12120307. The next prime is 12120343. The reversal of 12120329 is 92302121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7398400 + 4721929 = 2720^2 + 2173^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120329 - 2¹⁶ = 12054793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12120329.

It is not an unprimeable number, because it can be changed into a prime (12120629) by changing a digit.

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, 466154 + ... + 466179.

It is an arithmetic number, because the mean of its divisors is an integer number (3263169).

Almost surely, 2^12120329 is an apocalyptic number.

It is an amenable number.

12120329 is a deficient number, since it is larger than the sum of its proper divisors (932347).

12120329 is an equidigital number, since it uses as much as digits as its factorization.

12120329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932346.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12120329 is about 3481.4262881756. The cubic root of 12120329 is about 229.7055399995.

The spelling of 12120329 in words is "twelve million, one hundred twenty thousand, three hundred twenty-nine".