12012452305 has 16 divisors (see below), whose sum is σ = 17190491904. Its totient is φ = 7878974400.

The previous prime is 12012452261. The next prime is 12012452317. The reversal of 12012452305 is 50325421021.

It is not a de Polignac number, because 12012452305 - 2⁹ = 12012451793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012452305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7460346 + ... + 7461955.

It is an arithmetic number, because the mean of its divisors is an integer number (1074405744).

Almost surely, 2^12012452305 is an apocalyptic number.

It is an amenable number.

12012452305 is a deficient number, since it is larger than the sum of its proper divisors (5178039599).

12012452305 is a wasteful number, since it uses less digits than its factorization.

12012452305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14922336.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 12012452305 its reverse (50325421021), we get a palindrome (62337873326).

The spelling of 12012452305 in words is "twelve billion, twelve million, four hundred fifty-two thousand, three hundred five".