16003421233 has 4 divisors (see below), whose sum is σ = 16086340708. Its totient is φ = 15920501760.

The previous prime is 16003421221. The next prime is 16003421249. The reversal of 16003421233 is 33212430061.

16003421233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3314074624 + 12689346609 = 57568^2 + 112647^2 .

It is a cyclic number.

It is not a de Polignac number, because 16003421233 - 2⁵ = 16003421201 is a prime.

It is a super-2 number, since 2×16003421233² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16003421198 and 16003421207.

It is not an unprimeable number, because it can be changed into a prime (16003421293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41459448 + ... + 41459833.

It is an arithmetic number, because the mean of its divisors is an integer number (4021585177).

Almost surely, 2^16003421233 is an apocalyptic number.

It is an amenable number.

16003421233 is a deficient number, since it is larger than the sum of its proper divisors (82919475).

16003421233 is an equidigital number, since it uses as much as digits as its factorization.

16003421233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82919474.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 16003421233 its reverse (33212430061), we get a palindrome (49215851294).

The spelling of 16003421233 in words is "sixteen billion, three million, four hundred twenty-one thousand, two hundred thirty-three".