12002109971 has 2 divisors, whose sum is σ = 12002109972. Its totient is φ = 12002109970.

The previous prime is 12002109967. The next prime is 12002109979. The reversal of 12002109971 is 17990120021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12002109971 - 2² = 12002109967 is a prime.

It is not a weakly prime, because it can be changed into another prime (12002109979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001054985 + 6001054986.

It is an arithmetic number, because the mean of its divisors is an integer number (6001054986).

Almost surely, 2^12002109971 is an apocalyptic number.

12002109971 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002109971 is an equidigital number, since it uses as much as digits as its factorization.

12002109971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

Adding to 12002109971 its reverse (17990120021), we get a palindrome (29992229992).

The spelling of 12002109971 in words is "twelve billion, two million, one hundred nine thousand, nine hundred seventy-one".