16020003 has 8 divisors (see below), whose sum is σ = 21710416. Its totient is φ = 10504800.

The previous prime is 16019999. The next prime is 16020007. The reversal of 16020003 is 30002061.

16020003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16019999) and next prime (16020007).

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

It is not a de Polignac number, because 16020003 - 2² = 16019999 is a prime.

It is a super-2 number, since 2×16020003² = 513280992240018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16020007) 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, 43588 + ... + 43953.

It is an arithmetic number, because the mean of its divisors is an integer number (2713802).

Almost surely, 2^16020003 is an apocalyptic number.

16020003 is a deficient number, since it is larger than the sum of its proper divisors (5690413).

16020003 is an equidigital number, since it uses as much as digits as its factorization.

16020003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87605.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 16020003 is about 4002.4995940037. The cubic root of 16020003 is about 252.0891754188.

Adding to 16020003 its reverse (30002061), we get a palindrome (46022064).

The spelling of 16020003 in words is "sixteen million, twenty thousand, three".