12051404305 has 8 divisors (see below), whose sum is σ = 14698762344. Its totient is φ = 9483072000.

The previous prime is 12051404221. The next prime is 12051404333. The reversal of 12051404305 is 50340415021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 903423249 + 11147981056 = 30057^2 + 105584^2 .

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

It is not a de Polignac number, because 12051404305 - 2¹¹ = 12051402257 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 12051404305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19756096 + ... + 19756705.

It is an arithmetic number, because the mean of its divisors is an integer number (1837345293).

Almost surely, 2^12051404305 is an apocalyptic number.

It is an amenable number.

12051404305 is a deficient number, since it is larger than the sum of its proper divisors (2647358039).

12051404305 is an equidigital number, since it uses as much as digits as its factorization.

12051404305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39512867.

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

Adding to 12051404305 its reverse (50340415021), we get a palindrome (62391819326).

The spelling of 12051404305 in words is "twelve billion, fifty-one million, four hundred four thousand, three hundred five".