12231009971 has 2 divisors, whose sum is σ = 12231009972. Its totient is φ = 12231009970.

The previous prime is 12231009961. The next prime is 12231009983. The reversal of 12231009971 is 17990013221.

12231009971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12231009971 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12231009961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115504985 + 6115504986.

It is an arithmetic number, because the mean of its divisors is an integer number (6115504986).

Almost surely, 2^12231009971 is an apocalyptic number.

12231009971 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231009971 is an equidigital number, since it uses as much as digits as its factorization.

12231009971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 12231009971 in words is "twelve billion, two hundred thirty-one million, nine thousand, nine hundred seventy-one".