12151055305 has 4 divisors (see below), whose sum is σ = 14581266372. Its totient is φ = 9720844240.

The previous prime is 12151055299. The next prime is 12151055339. The reversal of 12151055305 is 50355015121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50355015121 = 17 ⋅2962059713.

It can be written as a sum of positive squares in 2 ways, for example, as 3015327744 + 9135727561 = 54912^2 + 95581^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12151055305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215105526 + ... + 1215105535.

It is an arithmetic number, because the mean of its divisors is an integer number (3645316593).

Almost surely, 2^12151055305 is an apocalyptic number.

It is an amenable number.

12151055305 is a deficient number, since it is larger than the sum of its proper divisors (2430211067).

12151055305 is an equidigital number, since it uses as much as digits as its factorization.

12151055305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430211066.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 12151055305 in words is "twelve billion, one hundred fifty-one million, fifty-five thousand, three hundred five".