12120434 has 16 divisors (see below), whose sum is σ = 19094400. Its totient is φ = 5762064.

The previous prime is 12120431. The next prime is 12120443. The reversal of 12120434 is 43402121.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12120431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2327 + ... + 5445.

It is an arithmetic number, because the mean of its divisors is an integer number (1193400).

Almost surely, 2^12120434 is an apocalyptic number.

12120434 is a deficient number, since it is larger than the sum of its proper divisors (6973966).

12120434 is a wasteful number, since it uses less digits than its factorization.

12120434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12120434 is about 3481.4413681692. The cubic root of 12120434 is about 229.7062033206.

Adding to 12120434 its reverse (43402121), we get a palindrome (55522555).

The spelling of 12120434 in words is "twelve million, one hundred twenty thousand, four hundred thirty-four".