12036621347 has 2 divisors, whose sum is σ = 12036621348. Its totient is φ = 12036621346.

The previous prime is 12036621343. The next prime is 12036621403. The reversal of 12036621347 is 74312663021.

It is a weak prime.

It is an emirp because it is prime and its reverse (74312663021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12036621347 - 2² = 12036621343 is a prime.

It is not a weakly prime, because it can be changed into another prime (12036621341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6018310673 + 6018310674.

It is an arithmetic number, because the mean of its divisors is an integer number (6018310674).

Almost surely, 2^12036621347 is an apocalyptic number.

12036621347 is a deficient number, since it is larger than the sum of its proper divisors (1).

12036621347 is an equidigital number, since it uses as much as digits as its factorization.

12036621347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 12036621347 in words is "twelve billion, thirty-six million, six hundred twenty-one thousand, three hundred forty-seven".