12000000005 has 16 divisors (see below), whose sum is σ = 16462101504. Its totient is φ = 8226092160.

The previous prime is 11999999983. The next prime is 12000000073. The reversal of 12000000005 is 50000000021.

It is a de Polignac number, because none of the positive numbers 2^k-12000000005 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11999999929 and 12000000001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70220 + ... + 170090.

It is an arithmetic number, because the mean of its divisors is an integer number (1028881344).

Almost surely, 2^12000000005 is an apocalyptic number.

It is an amenable number.

12000000005 is a deficient number, since it is larger than the sum of its proper divisors (4462101499).

12000000005 is an equidigital number, since it uses as much as digits as its factorization.

12000000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103316.

The product of its (nonzero) digits is 10, while the sum is 8.

Adding to 12000000005 its reverse (50000000021), we get a palindrome (62000000026).

The spelling of 12000000005 in words is "twelve billion, five", and thus it is an aban number and an uban number.