12003013806 has 16 divisors (see below), whose sum is σ = 27435460224. Its totient is φ = 3429432504.

The previous prime is 12003013801. The next prime is 12003013807. The reversal of 12003013806 is 60831030021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003013801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142892980 + ... + 142893063.

It is an arithmetic number, because the mean of its divisors is an integer number (1714716264).

Almost surely, 2^12003013806 is an apocalyptic number.

12003013806 is an abundant number, since it is smaller than the sum of its proper divisors (15432446418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12003013806 is a wasteful number, since it uses less digits than its factorization.

12003013806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285786055.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12003013806 its reverse (60831030021), we get a palindrome (72834043827).

The spelling of 12003013806 in words is "twelve billion, three million, thirteen thousand, eight hundred six".