12130300145 has 4 divisors (see below), whose sum is σ = 14556360180. Its totient is φ = 9704240112.

The previous prime is 12130300121. The next prime is 12130300153. The reversal of 12130300145 is 54100303121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54100303121 = 61297 ⋅882593.

It can be written as a sum of positive squares in 2 ways, for example, as 4406702689 + 7723597456 = 66383^2 + 87884^2 .

It is a cyclic number.

It is not a de Polignac number, because 12130300145 - 2¹⁴ = 12130283761 is a prime.

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, 1213030010 + ... + 1213030019.

It is an arithmetic number, because the mean of its divisors is an integer number (3639090045).

Almost surely, 2^12130300145 is an apocalyptic number.

It is an amenable number.

12130300145 is a deficient number, since it is larger than the sum of its proper divisors (2426060035).

12130300145 is an equidigital number, since it uses as much as digits as its factorization.

12130300145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426060034.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 12130300145 its reverse (54100303121), we get a palindrome (66230603266).

The spelling of 12130300145 in words is "twelve billion, one hundred thirty million, three hundred thousand, one hundred forty-five".