12000010109 has 2 divisors, whose sum is σ = 12000010110. Its totient is φ = 12000010108.

The previous prime is 12000010013. The next prime is 12000010111. The reversal of 12000010109 is 90101000021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10661182009 + 1338828100 = 103253^2 + 36590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000010109 is a prime.

It is a super-2 number, since 2×12000010109² (a number of 21 digits) contains 22 as substring.

Together with 12000010111, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12000010093 and 12000010102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000010189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000005054 + 6000005055.

It is an arithmetic number, because the mean of its divisors is an integer number (6000005055).

Almost surely, 2^12000010109 is an apocalyptic number.

It is an amenable number.

12000010109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000010109 is an equidigital number, since it uses as much as digits as its factorization.

12000010109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

The spelling of 12000010109 in words is "twelve billion, ten thousand, one hundred nine".