12130640386 has 4 divisors (see below), whose sum is σ = 18195960582. Its totient is φ = 6065320192.

The previous prime is 12130640329. The next prime is 12130640393. The reversal of 12130640386 is 68304603121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68304603121 = 112337 ⋅608033.

It can be written as a sum of positive squares in only one way, i.e., 8339159761 + 3791480625 = 91319^2 + 61575^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3032660095 + ... + 3032660098.

Almost surely, 2^12130640386 is an apocalyptic number.

12130640386 is a deficient number, since it is larger than the sum of its proper divisors (6065320196).

12130640386 is an equidigital number, since it uses as much as digits as its factorization.

12130640386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6065320195.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 12130640386 in words is "twelve billion, one hundred thirty million, six hundred forty thousand, three hundred eighty-six".