12000108973 has 2 divisors, whose sum is σ = 12000108974. Its totient is φ = 12000108972.

The previous prime is 12000108899. The next prime is 12000108997. The reversal of 12000108973 is 37980100021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11997478089 + 2630884 = 109533^2 + 1622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000108973 is a prime.

It is a super-2 number, since 2×12000108973² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000105973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000054486 + 6000054487.

It is an arithmetic number, because the mean of its divisors is an integer number (6000054487).

Almost surely, 2^12000108973 is an apocalyptic number.

It is an amenable number.

12000108973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000108973 is an equidigital number, since it uses as much as digits as its factorization.

12000108973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

Adding to 12000108973 its reverse (37980100021), we get a palindrome (49980208994).

The spelling of 12000108973 in words is "twelve billion, one hundred eight thousand, nine hundred seventy-three".