16012003 has 8 divisors (see below), whose sum is σ = 19262720. Its totient is φ = 13002120.

The previous prime is 16011997. The next prime is 16012037. The reversal of 16012003 is 30021061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16012003 - 2⁵ = 16011971 is a prime.

It is the 4002-nd Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16012063) by changing a digit.

It is a nontrivial repunit in base 4001.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60063 + ... + 60328.

It is an arithmetic number, because the mean of its divisors is an integer number (2407840).

Almost surely, 2^16012003 is an apocalyptic number.

16012003 is a deficient number, since it is larger than the sum of its proper divisors (3250717).

16012003 is a wasteful number, since it uses less digits than its factorization.

16012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120417.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 16012003 is about 4001.5000937149. The cubic root of 16012003 is about 252.0472060302.

Adding to 16012003 its reverse (30021061), we get a palindrome (46033064).

The spelling of 16012003 in words is "sixteen million, twelve thousand, three".