12003729018 has 16 divisors (see below), whose sum is σ = 24009630816. Its totient is φ = 4000880880.

The previous prime is 12003728999. The next prime is 12003729037. The reversal of 12003729018 is 81092730021.

It is an interprime number because it is at equal distance from previous prime (12003728999) and next prime (12003729037).

It is a self number, because there is not a number n which added to its sum of digits gives 12003729018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13696 + ... + 155547.

It is an arithmetic number, because the mean of its divisors is an integer number (1500601926).

Almost surely, 2^12003729018 is an apocalyptic number.

12003729018 is an abundant number, since it is smaller than the sum of its proper divisors (12005901798).

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

12003729018 is a wasteful number, since it uses less digits than its factorization.

12003729018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181069.

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 12003729018 in words is "twelve billion, three million, seven hundred twenty-nine thousand, eighteen".