12083012561 has 2 divisors, whose sum is σ = 12083012562. Its totient is φ = 12083012560.

The previous prime is 12083012521. The next prime is 12083012567. The reversal of 12083012561 is 16521038021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6643065025 + 5439947536 = 81505^2 + 73756^2 .

It is an emirp because it is prime and its reverse (16521038021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12083012561 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12083012567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6041506280 + 6041506281.

It is an arithmetic number, because the mean of its divisors is an integer number (6041506281).

Almost surely, 2^12083012561 is an apocalyptic number.

It is an amenable number.

12083012561 is a deficient number, since it is larger than the sum of its proper divisors (1).

12083012561 is an equidigital number, since it uses as much as digits as its factorization.

12083012561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 12083012561 in words is "twelve billion, eighty-three million, twelve thousand, five hundred sixty-one".