12120352954323 has 16 divisors (see below), whose sum is σ = 16428254518560. Its totient is φ = 7946970476544.

The previous prime is 12120352954319. The next prime is 12120352954343. The reversal of 12120352954323 is 32345925302121.

It is a happy number.

It is not a de Polignac number, because 12120352954323 - 2² = 12120352954319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120352954343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78313738 + ... + 78468351.

It is an arithmetic number, because the mean of its divisors is an integer number (1026765907410).

Almost surely, 2^{12120352954323} is an apocalyptic number.

12120352954323 is a deficient number, since it is larger than the sum of its proper divisors (4307901564237).

12120352954323 is a wasteful number, since it uses less digits than its factorization.

12120352954323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156782518.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 12120352954323 in words is "twelve trillion, one hundred twenty billion, three hundred fifty-two million, nine hundred fifty-four thousand, three hundred twenty-three".