12003035540 has 12 divisors (see below), whose sum is σ = 25206374676. Its totient is φ = 4801214208.

The previous prime is 12003035501. The next prime is 12003035567. The reversal of 12003035540 is 4553030021.

It can be written as a sum of positive squares in 2 ways, for example, as 4991987716 + 7011047824 = 70654^2 + 83732^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300075869 + ... + 300075908.

It is an arithmetic number, because the mean of its divisors is an integer number (2100531223).

Almost surely, 2^12003035540 is an apocalyptic number.

12003035540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12003035540 is an abundant number, since it is smaller than the sum of its proper divisors (13203339136).

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

12003035540 is a wasteful number, since it uses less digits than its factorization.

12003035540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600151786 (or 600151784 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 12003035540 its reverse (4553030021), we get a palindrome (16556065561).

The spelling of 12003035540 in words is "twelve billion, three million, thirty-five thousand, five hundred forty".